A Practical Guide: What Size Backpack for Day Hiking & 3 Key Capacities Explained for 2025

Resumen

Determining the appropriate backpack size for a day hike is a foundational consideration for ensuring safety, comfort, and enjoyment on the trail. This decision transcends mere storage, implicating the hiker’s capacity for preparedness against unforeseen circumstances while balancing the physical burden of the load. An analysis of backpack capacities, measured in liters, reveals three primary categories tailored to varying hike durations, environmental conditions, and individual requirements. Packs in the 10-20 liter range are suited for short, fair-weather excursions, while 20-35 liter packs offer the versatility needed for most full-day, three-season hikes. Larger packs, from 35 to 50 liters, accommodate the demands of winter hiking, gear-intensive activities, or trips involving dependents. The selection process is further nuanced by factors such as trip length, seasonal weather patterns, gear specificity, and personal metabolic needs. A thorough understanding of pack features, including frame design, material composition, and suspension systems, is equally vital for optimizing load distribution and carrying comfort. This examination provides a structured framework for hikers to make an informed choice, aligning the technical specifications of a daypack with the practical and experiential realities of their intended journey.

Principales conclusiones

• For short hikes of 1-4 hours, a 10-20 liter pack is generally sufficient.
• Most full-day, three-season hikes are best served by a versatile 20-35 liter pack.
• Consider a 35-50 liter pack for winter hiking or when carrying gear for others.
• Your choice of what size backpack for day hiking depends on season, duration, and personal needs.
• Proper fit, especially torso length, is more important for comfort than pack volume alone.
• Always pack the “Ten Essentials” regardless of the size of your daypack.
• Test pack your gear at home to ensure everything fits before you hit the trail.

Índice

• Understanding Backpack Capacity: Liters, Not Guesswork
• The Three Core Day Hiking Backpack Capacities
• Beyond the Liters: Critical Factors That Influence Your Choice
• The Anatomy of a Day Hiking Backpack: Features That Matter
• How to Properly Fit and Pack Your Daypack for Optimal Comfort
• Preguntas más frecuentes (FAQ)
• Conclusión
• Referencias

Understanding Backpack Capacity: Liters, Not Guesswork

Before we can meaningfully address the question of what size backpack for day hiking is best, we must first establish a common language. When you see a number followed by an “L” on a backpack—like 25L or 40L—that number represents the pack’s total volume capacity in liters. This measurement is the standard across the outdoor industry, providing a consistent way to compare the carrying capacity of different bags.

But what does 25 liters actually look like? It can be an abstract concept. Think of it this way: a standard Nalgene water bottle holds one liter. So, a 25L backpack can theoretically hold the volume of 25 of those water bottles. This is a useful, if imperfect, visualization. The actual usable space is affected by the pack’s shape, the number of compartments, and the type of gear you’re packing. A down jacket, for instance, can be compressed to a tiny volume, while a climbing helmet is rigid and awkward.

The liter capacity encompasses the entire enclosed volume of the pack, including the main compartment, lid, and all zippered pockets. It typically does not include external mesh pockets, like those for water bottles, or external bungee cords, which offer additional, unmeasured storage. Therefore, the liter number is a fantastic starting point, a baseline from which we can begin to make a more nuanced decision. It is the fundamental metric that separates a small hydration pack from a pack designed for an extended day on the mountain.

From Liters to Real-World Items

To make this even more tangible, let’s translate liter capacities into the kinds of gear you might actually carry. It is one thing to speak of abstract volumes; it is another to consider the tangible objects that sustain and protect us in the wild. The table below offers a general guide to what you can realistically expect to fit into different size ranges. This translation from numerical data to practical application is the first step in demystifying the process of selecting a daypack.

This table serves as a preliminary map. The terrain of your actual needs will dictate the final route you take. The decision is not merely about fitting items into a bag; it is about carrying the right items to facilitate a particular kind of experience, whether that is a light-and-fast ascent or a leisurely day of photography in the woods.

The Three Core Day Hiking Backpack Capacities

The vast market of daypacks can be logically organized into three principal categories based on volume. Each category corresponds to a different philosophy of hiking and a different set of environmental challenges. Understanding these archetypes allows you to position yourself and your needs within a clearer framework, moving from a world of infinite choice to a structured decision. The core of answering “what size backpack for day hiking?” lies in identifying which of these three hikers you are on any given day.

The Minimalist: The 10-20 Liter Pack

This is the pack for the fast and light enthusiast, for the hiker who has their system dialed in and is confident in the weather forecast. It’s designed for short adventures—a few hours on a familiar trail, a quick summit before work, or a walk in fair conditions where the trailhead is never too far away.

The philosophy here is one of efficiency and freedom. A smaller pack is inherently lighter, encouraging a faster pace and placing less strain on your shoulders and back. It forces a certain discipline; you can only bring what is truly necessary. This might include a 1-2 liter water reservoir, a rain shell, a phone, keys, and enough snacks for a few hours. There is little room for luxuries or “what-if” items beyond the absolute essentials.

For whom is this pack appropriate? It is for the seasoned hiker on a short, predictable route. It is for the trail runner who needs more than just a handheld water bottle. It is for the person hiking in a hot, dry climate where bulky insulation layers are unnecessary. However, its minimalism is also its primary limitation. It is generally inadequate for full-day excursions, for any hike in the mountains where weather can change dramatically, or for anyone new to hiking who might not yet know what their personal needs are. It offers little buffer for error or unexpected changes in conditions.

The All-Rounder: The 20-35 Liter Pack

This is the undisputed sweet spot for the vast majority of day hikers and is the most common answer to the question of what size pack to get. A pack in this range, particularly between 25 and 30 liters, offers a brilliant compromise between capacity and comfort. It is large enough to hold everything you need for a full day on the trail in most three-season conditions, without being so large that it becomes cumbersome or encourages overpacking.

What can you carry? Inside a 28-liter pack, you can comfortably fit the Ten Essentials, a 3-liter water bladder, a substantial lunch, a fleece jacket, a rain jacket and pants, a first-aid kit, a map and compass, a headlamp, and still have a bit of room to spare. This capacity allows you to be prepared for a wide range of possibilities. A sudden drop in temperature? You have your insulation. An unexpected rain shower? You have your shell. The hike takes longer than planned? You have a headlamp and extra food.

This versatility makes it the workhorse of the day hiking world. It’s suitable for a 10-mile hike in the Rockies in August, a damp walk through the Scottish Highlands in May, or an autumn exploration of a New England forest. Many people find a pack of this size so useful that it becomes their go-to bag for more than just hiking, serving as a carry-on for travel or a commuter bag. A well-designed mochila de viaje in this size range often incorporates features useful for both urban and wilderness environments.

The table below compares the two most popular sizes within this “all-rounder” category, helping to parse the subtle but important differences that might steer you toward one over the other.

Choosing between a 25L and a 30L pack often comes down to your personal packing style and the climate you most frequently hike in. Do you run cold and always bring an extra puffy jacket? The 30L might be better. Do you pride yourself on a minimalist kit? The 25L will feel liberating.

The Expeditionist: The 35-50 Liter Pack

While some might argue a pack over 35 liters is entering overnight territory, it has a crucial place in the world of day hiking. This larger capacity is not for your average summer stroll; it is for specialized, gear-intensive day trips.

Think about winter hiking. The gear required is substantially bulkier and heavier. You need more insulation (a large puffy jacket), more robust shell layers, safety equipment like microspikes or snowshoes (which might be strapped to the outside), a thermos of hot liquid, and more emergency gear. All of this volume adds up quickly, and a 30L pack can become strained. A 40L pack allows you to carry these items comfortably and safely.

This size range is also essential for those who are carrying gear for others. Are you hiking with young children who can’t carry their own food, water, and extra clothing? You will be carrying it for them, and your pack volume needs to reflect that responsibility. Similarly, this is the size a group’s leader might carry, holding a more comprehensive first-aid kit, emergency shelter, or other group gear.

Finally, specialized pursuits may demand this capacity. A landscape photographer might need a 35L+ pack to hold a tripod, multiple lenses, and filters in addition to their standard hiking gear. A rock climber on a long approach to a crag needs space for a rope, harness, helmet, and climbing shoes. In these contexts, the backpack is not just for hiking essentials; it is a tool-hauler for another passion.

Beyond the Liters: Critical Factors That Influence Your Choice

The volume of a pack, measured in liters, provides a quantitative starting point, but a truly wise decision requires a qualitative assessment of your specific hiking context. The question, “what size backpack for day hiking?” cannot be answered by a number alone. It must be answered by reflecting on the nature of your journeys. The interplay between duration, season, weather, and personal responsibility creates a unique equation for every hiker and every trip.

The Seasonality of Your Hike: A Tale of Two Jackets

Imagine for a moment the gear you’d pack for a hike in July versus one in January. The difference is profound and has a direct impact on the volume your pack must accommodate.

• Summer (and Warm Climates): In the heat, your insulation needs are minimal. Your “extra layer” might be a thin fleece or even just a long-sleeved sun shirt. Your rain gear can be an ultralight, minimalist shell. These items are highly compressible and occupy very little space. A 20-25 liter pack often feels cavernous in these conditions. You are primarily carrying water, food, and sun protection.
• Shoulder Seasons (Spring/Autumn): These seasons are defined by their unpredictability. A morning can start cold, warm up significantly by midday, and end with a chilly, rainy evening. This requires a layering system: a base layer, a fleece mid-layer, and a weatherproof shell. You might even pack a lightweight puffy jacket for rest stops. These multiple layers, even when packed, take up considerable volume. A 25-35 liter pack is ideal, giving you the flexibility to shed and store layers as the day evolves.
• Winter: Winter demands the most from your gear and your pack. Your insulation is thick (a heavy down or synthetic puffy jacket), your shell is robust, and you have additional safety equipment. Microspikes or crampons for ice, snowshoes for deep snow, a thermos with a hot drink, larger gloves, and a warmer hat all compete for space. This is where a 35-liter pack becomes the minimum for many, and a 40-liter pack is often a safer choice, ensuring you are not forced to leave a critical piece of safety gear behind due to lack of space.

Duration and Difficulty of the Trail

The length of time you plan to be on the trail, coupled with its strenuousness, directly influences the amount of food, water, and “just-in-case” gear you should carry.

A short, 2-hour hike on a well-marked local trail requires far less logistical support than a 10-hour trek to a remote mountain peak. For the former, a liter of water and a granola bar might suffice. For the latter, you must plan for a full day’s worth of calories and carry significantly more water (or a reliable filtration system). You also have to consider the increased likelihood of being caught out after dark, making a headlamp and extra warm layer non-negotiable.

The difficulty also plays a role. A steep, strenuous ascent will cause you to sweat more and consume more calories and water than a flat walk of the same distance. Your pack must be able to accommodate these increased needs. Therefore, a hiker planning a challenging all-day mountain adventure will naturally gravitate towards the upper end of the “All-Rounder” category (30-35L), while someone planning a gentle, shorter walk will be perfectly served by the “Minimalist” (15-20L).

Personal Needs and “What-Ifs”: The Human Factor

Backpack capacity is not just about the trail; it’s about the person on the trail. We all have different metabolisms, comfort levels, and approaches to risk.

• Metabolism and Hydration: Do you run hot or cold? Someone who gets cold easily should always pack an extra layer, even on a warm day, which requires more space. Do you sweat a lot or simply drink a lot of water? You may need to carry 3-4 liters of water while your hiking partner is fine with 2, and that extra volume and weight must be accounted for.
• The Ten Essentials: This is a non-negotiable list of systems for safety and survival in the outdoors. It includes navigation, a headlamp, sun protection, first aid, a knife, fire-starting materials, an emergency shelter, and extra food, water, and clothes. While the specific items might change, the categories remain. A responsible hiker always carries these. The question of what size backpack for day hiking must always presume that these essentials will be packed. A 10L pack will be severely strained to carry all of them properly.
• Hiking with Dependents: As mentioned earlier, hiking with children or even a dog transforms your packing list. You become the logistical hub for the group. You’ll carry their extra layers, a significant portion of their food and water, and a more comprehensive first-aid kit. This responsibility automatically pushes you towards a larger pack, often in the 35L+ range, to ensure the safety and comfort of those who depend on you.

The Role of Weather and Climate

Where you hike is as important as when. The ambient climate of your chosen region dictates a baseline for your gear. A hiker in the rainy Pacific Northwest of the United States will almost always carry a reliable rain jacket and rain pants, items that a hiker in the arid deserts of the Southwest might trade for an extra liter of water and more sun protection. The bulky nature of rain gear compared to a sun hat directly impacts volume needs. Mountainous regions, regardless of their climate, are notorious for creating their own weather. An ascent of just a few thousand feet can bring a dramatic drop in temperature and an increase in wind, making extra layers a necessity even on a sunny day.

The Anatomy of a Day Hiking Backpack: Features That Matter

Once you have narrowed down the appropriate volume range, the search for the perfect daypack shifts to its features and construction. The design of a pack—its frame, its access points, its materials—profoundly affects how it carries weight and how you interact with your gear. A poorly designed 25-liter pack can feel more burdensome than a well-designed 35-liter pack. This is where quality and thoughtful engineering reveal their true value.

Frame and Suspension Systems: The Science of the Carry

The suspension system is the heart of a backpack’s comfort. It is the interface between the load and your body. Its job is to transfer the weight from your shoulders to the much stronger bone structure of your hips.

• Paquetes sin marco: Often found in the sub-20L category, these packs have no rigid internal structure. They are extremely lightweight and simple. Their comfort, however, is entirely dependent on the load being small and the contents being packed carefully to avoid items jabbing you in the back. They are best for very light loads (under 10-15 lbs / 4.5-7 kg).
• Paquetes de marcos internos: This is the standard for most quality daypacks over 20 liters. The frame can consist of a flexible plastic framesheet, one or two aluminum stays, or a wire perimeter. This structure provides rigidity, preventing the pack from collapsing into a shapeless sack, and is the key to transferring weight to the hipbelt. It allows the pack to carry heavier loads (up to 20-25 lbs / 9-11 kg) comfortably for long durations.
• Hipbelts and Shoulder Straps: A good hipbelt is padded and should sit squarely on your iliac crest (the top of your hip bones). This is where 80% or more of the pack’s weight should rest. The shoulder straps are primarily for keeping the pack stable and close to your back, not for bearing the main load. Sternum straps pull the shoulder straps together, preventing them from slipping off your shoulders and adding stability.

Ventilation: The Battle Against the Sweaty Back

One of the classic discomforts of hiking is the dreaded sweaty back syndrome. Modern pack design has addressed this in two primary ways:

• Foam Channels: Many packs use padded foam panels with air channels cut into them. This allows some air to circulate between your back and the pack, offering a degree of ventilation. It keeps the load very close to your center of gravity, which is excellent for stability when scrambling or moving over uneven terrain.
• Tensioned Mesh Backpanels (or “Trampoline” Systems): Pioneered by brands like Osprey, this design features a mesh panel stretched taut across the frame, creating a large gap of open air between your back and the pack itself. This provides exceptional ventilation and is a revelation for those who hike in hot, humid conditions. The trade-off can be a slight shift in the center of gravity, as the weight is held further away from your body, but for many, the comfort of a dry back is well worth it.

Access and Organization: Finding Your Gear

How you get into your pack is a matter of practical importance on the trail. You don’t want to have to empty your entire bag just to find your rain jacket when a sudden storm hits.

• Top-Loading: The traditional design, a top-loader has a single large opening at the top, usually covered by a “brain” or lid pocket and secured with a drawstring. They are simple, durable, and pack very efficiently.
• Panel-Loading (or Zippered Access): These packs feature a large U-shaped zipper on the front, allowing the main panel to be opened like a suitcase. This offers fantastic access to all your gear at once. It’s incredibly convenient for organization and for finding items buried at the bottom of the pack. This design is common in many versatile travel and hiking packs, like a good quality nylon hiking camping travel bag, which prioritizes easy access to contents.
• Pockets and Features: Look for useful organizational features. Stretch mesh pockets on the front and sides are perfect for stashing a wet rain jacket or water bottles. Hipbelt pockets are invaluable for keeping small items like snacks, a phone, or lip balm accessible without having to take your pack off. A dedicated sleeve and hose port for a hydration reservoir is a standard feature on almost all modern daypacks and is highly recommended.

Material and Durability: Built to Last

A backpack is an investment, and its longevity is largely determined by its materials and construction. The fabrics used are a balance of durability, weight, and water resistance ftlbags.com.

• Nylon: The most common material, nylon comes in various “deniers” (a measure of fiber thickness). A higher denier number, like 420D, is more robust and abrasion-resistant than a lower number, like 100D. Many packs use a combination, with tougher fabrics on the bottom and high-wear areas, and lighter fabrics on the main body. “Ripstop” nylon has a grid of heavier threads woven in to prevent tears from spreading. High-performance variants like Cordura or Ballistic Nylon are known for their exceptional durability and are often found on higher-end packs (Andi, 2025).
• Polyester: Slightly less durable and abrasion-resistant than nylon but offers better resistance to UV degradation and retains less water. It is often found in more budget-friendly packs.
• Water Resistance: Most pack fabrics are treated with a DWR (Durable Water Repellent) finish and may have a polyurethane coating on the inside. This makes them highly water-resistant, capable of shedding light rain, but not fully waterproof. In a sustained downpour, water will eventually seep through seams and zippers. For this reason, it is always wise to use a pack rain cover or to pack critical items (like electronics and insulation) in dry bags.

How to Properly Fit and Pack Your Daypack for Optimal Comfort

You can have the most expensive, feature-rich backpack in the world, but if it doesn’t fit you correctly, it will be an instrument of torture on the trail. Proper fit is arguably more important than any other single factor. An ill-fitting 20-liter pack can cause more pain and misery than a perfectly fitted 35-liter pack carrying the same weight.

The Crucial Measurement: Your Torso Length

The single most important measurement for fitting a backpack is your torso length, not your overall height. This is the distance from your C7 vertebra (the bony lump at the base of your neck) down to your iliac crest (the imaginary line running between the tops of your hipbones).

To measure it:

1. Tilt your head forward to easily locate the C7 vertebra. It’s the most prominent bone.
2. Place your hands on your hips, with your thumbs pointing backward. The shelf your hands are resting on is your iliac crest.
3. Have a friend use a flexible measuring tape to measure the distance along your spine between these two points.

Most quality daypacks come in different sizes (e.g., Small, Medium, Large) or have an adjustable torso length feature. Knowing your measurement allows you to choose the correct size from the start.

The Adjustment Sequence: A Step-by-Step Guide

Once you have a pack that matches your torso length, you need to fine-tune the fit. It’s best to do this with some weight in the pack (around 10-15 lbs / 4.5-7 kg) to simulate a real load.

1. Loosen All Straps: Start by loosening the hipbelt, shoulder straps, and load lifters completely.
2. Position the Hipbelt: Put the pack on and position the hipbelt so that the padding sits squarely on top of your iliac crest. Cinch it down snugly. It should be tight enough to grip your hips and transfer the weight, but not so tight that it restricts breathing or movement.
3. Tighten the Shoulder Straps: Pull down on the shoulder straps. They should be snug, pulling the pack close to your back, but they should not be carrying the majority of the weight. You should still feel the weight resting on your hips.
4. Connect the Sternum Strap: Adjust the sternum strap so it sits about an inch below your collarbones and clip it. Tighten it until the shoulder straps are pulled comfortably inward, preventing them from slipping off your shoulders. It should not be so tight that it impedes your breathing.
5. Snug the Load Lifters: These are the small straps that connect the top of the shoulder straps to the top of the pack. Gently pull them to eliminate any gap between your shoulders and the shoulder straps. They should be at roughly a 45-degree angle. Do not overtighten them; this will pull the weight off your hips and back onto your shoulders.

The Art of Packing: Strategic Weight Distribution

How you load your gear inside the pack is the final piece of the comfort puzzle. A well-packed bag is stable, balanced, and feels lighter than a poorly packed one.

• Heavy Items: Your heaviest gear (extra water, dense food, etc.) should be placed in the middle of the pack, close to your spine. This keeps the center of gravity high and close to your body, which is the most stable and efficient way to carry a load.
• Medium-Weight Items: Bulkier but less dense items, like a fleece jacket or a stove, can be packed around the heavy core.
• Lightweight and Compressible Items: Your lightest gear, like a puffy jacket or sleeping bag (for an overnight trip), should go at the bottom of the pack. This creates a stable base.
• Frequently Needed Items: Gear you’ll need to access quickly—snacks, a map, a rain jacket, a headlamp—should be stored in the top lid, front pocket, or hipbelt pockets for easy access.

By following this packing strategy, you create a dense, stable core that moves with your body, rather than a lopsided, swinging load that throws you off balance with every step.

Preguntas más frecuentes (FAQ)

Can I use a regular school backpack for day hiking?

While you can for a very short, casual walk on a paved path, it is not recommended for actual trail hiking. School backpacks lack the critical features for comfort and function, namely a supportive hipbelt and a proper suspension system. This means all the weight will hang directly from your shoulders, leading to discomfort and fatigue quickly. They also lack trail-specific features like hydration reservoir compatibility and external pockets for water bottles.

Is a 20L backpack big enough for a day hike?

A 20L backpack is big enough for a short day hike (2-5 hours) in good, stable weather. It can hold the essentials, a light layer, and some food and water. However, it will be very tight for a full-day hike, especially in the mountains or during spring or autumn when you need to carry more layers and supplies. For all-around versatility, most people are better served by a slightly larger pack in the 25-30L range.

What is the difference between a men’s and a women’s specific backpack?

Women’s specific backpacks are engineered to fit the general anatomical differences of a female frame. Typically, they have a shorter torso length range, a narrower shoulder harness with more curve to accommodate the chest, and a hipbelt that is canted and shaped differently to better fit wider hips. While not every woman will find a women’s pack more comfortable (and some men may prefer a women’s pack), they are a crucial option that provides a better fit for many hikers.

Do I really need a rain cover for my daypack?

While most daypacks are highly water-resistant, they are not waterproof. In a persistent or heavy rain, water will eventually soak through the fabric and seams. A rain cover is a lightweight, inexpensive piece of insurance that keeps your pack and its contents, 특히 your warm insulating layers and electronics, completely dry. It is highly recommended, especially if you hike in a region prone to rain.

How much weight should I carry in my daypack?

A common guideline is that your packed daypack should not exceed 10-20% of your body weight. For a 150 lb (68 kg) person, this would be a maximum of 15-30 lbs (7-14 kg). For most day hikes, a well-packed bag will be in the 10-20 lb range. The goal is to carry everything you need to be safe and comfortable, but absolutely nothing more. Every ounce counts over a long day.

What should I look for when choosing a backpack for a day hike in 2025?

In 2025, consumer preferences are leaning towards lightweight, durable, and versatile bags. Look for packs made from advanced, light-yet-strong materials like high-denier ripstop nylon or specialized fabrics that maximize internal space while minimizing carry weight (Andi, 2025). Features like tensioned-mesh back panels for ventilation, large stretch-mesh front pockets for stashing layers, and well-designed hipbelt pockets for on-the-go access continue to be highly valued.

Can I use one large backpack for travel and day hiking?

This is a popular strategy for minimalist travelers. Some larger travel backpacks (around 40-45L) are designed as two-part systems, where a smaller daypack zips off the main bag (). Another approach is to use a 30-40L travel backpack as your main luggage and carry a separate, highly packable daypack that folds down into its own pocket for use on day trips.

Conclusión

The process of selecting a backpack for day hiking is an exercise in self-awareness and foresight. It asks us to look inward at our habits and outward at the environments we wish to explore. The question is not simply “what size backpack for day hiking,” but rather, “what tool do I need to facilitate the experience I seek, while upholding my responsibility to be prepared?” The answer does not reside in a single number, but in a thoughtful consideration of the season, the duration of the journey, and the personal and circumstantial factors that make each hike unique. A 15-liter pack can be an instrument of freedom on a short summer trail, while a 40-liter pack becomes a vessel of safety and provision in the heart of winter. The ideal pack is one that feels like a natural extension of your body, carrying the load so effectively that you are free to forget its weight and immerse yourself in the beauty of the world around you. It is a silent partner, a trusted piece of equipment that, when chosen wisely, empowers you to walk further, safer, and with greater joy.

Referencias

Andi. (2025, May 29). Travel bags market insights: What travelers want in 2025. LeelineBags. https://www.leelinebags.com/travel-bags-market/

FTL Bags. (2025, April 19). Material matters: Travel bag material comparison guide. https://ftlbags.com/a/blog/travel-bag-material-comparison?srsltid=AfmBOoqxq4deqiiRrt5maJ8Rtb4UKjybnEGFCJRRx1objSeHEjAoEQ7j

Generation Nomad. (2025, January 1). Ultimate guide to travel backpacking.

Hagan, C. (2023, July 26). How to choose daypacks. REI Co-op.

Lanza, M. (2024, March 1). The 10 best hiking daypacks of 2024. The Big Outside.

National Park Service. (2023, December 1). The ten essentials.

Potter, S. (2023, June 20). How to choose a hiking backpack. Backpacker.

Sawyer, A. (2024, January 10). How to fit a backpack. Outdoor GearLab. https://www.outdoorgearlab.com/topics/camping-and-hiking/hiking-backpacks/buying-advice/how-to-fit-a-backpack

The Mountaineers. (n.d.). What are the ten essentials?https://www.mountaineers.org/blog/what-are-the-ten-essentials

Weist, E. (2024, May 15). Daypack vs. backpack: Which do you need? The Trek.