Best Thru-Hiking Backpacks of 2026

Looking to hike a long trail? You’ll need a great backpack. The best packs are comfortable for many miles, hold all your gear, and are tough for years of use. This guide makes it simple. We’ve picked top backpacks that fit right, organize well, and won’t weigh you down. Find the perfect pack for your next thru-hike, and hit the trail with confidence.

1. REI Co-op Trailmade 60

REI Co-op Trailmade 60

  • Capacity: 60 liters
  • Weight: 3 lbs. 5–8 oz.
  • Frame: Internal spring steel
  • Material: Ripstop & recycled nylon

The REI Co-op Trailmade 60 is built for hikers who want a reliable, comfortable pack without unnecessary complexity. Its internal spring steel frame provides solid load support, making it suitable for multi-day trips with heavier gear. The adjustable torso system allows you to fine-tune the fit, which is especially useful when carrying a full load over long distances. The padding on the shoulder straps and hipbelt strikes a good balance between comfort and breathability.

Storage is thoughtfully laid out, with a top-loading main compartment, a U-zipper for easier access, and a dedicated sleeping bag compartment. Six exterior pockets help keep essentials organized and accessible on the trail. While it skips a built-in raincover, the durable, bluesign-approved fabrics handle abrasion and light weather well. Sustainability is also a highlight, with recycled materials and Fair Trade Certified manufacturing. Overall, this pack is a dependable choice for backpackers who value fit, durability, and responsible construction.

  • Pros: Excellent fit adjustment, durable materials, sustainable design
  • Cons: No raincover included, slightly heavier than ultralight packs

View Men’s at REI View Women’s at REI

2. Teton Scout 55L

Teton Scout 55L

  • Capacity: 55 liters
  • Fit: Adjustable torso
  • Hydration: Reservoir compatible
  • Use: Beginner to intermediate

The Teton Scout 55L is designed to deliver solid performance at an accessible price point. It offers a feature-rich layout that works well for both beginners and experienced backpackers. The adjustable torso system accommodates medium and tall users, allowing a more personalized fit that improves comfort on longer hikes. Open-cell foam in the lumbar area enhances cushioning while promoting airflow.

Organization is one of this pack’s strengths. A large sleeping bag compartment, multiple compression straps, and several pockets make it easy to keep gear secure and well balanced. The hydration pocket adds convenience for warm-weather hikes, and the overall construction feels rugged enough for repeated use. While it is not the lightest pack in its class, it compensates with durability and thoughtful design. Backed by Teton’s strong customer support, the Scout 55L is a dependable option for those building their backpacking kit.

  • Pros: Affordable, adjustable fit, good organization
  • Cons: Heavier than premium packs, basic materials

See the Teton Scout 55L

3. Osprey Exos 58

Osprey Exos 58

  • Capacity: 58–61 liters
  • Weight: 2 lbs. 13–15 oz.
  • Frame: Alloy steel hoop
  • Back Panel: Suspended mesh

The Osprey Exos 58 is a favorite among lightweight backpackers who still want excellent load support. Its suspended mesh back panel creates impressive ventilation, keeping your back cooler during demanding climbs. Despite its low weight, the internal frame and peripheral hoop provide stability when carrying multi-day gear.

Storage is streamlined but efficient, with six exterior pockets and a top-loading main compartment. The pack fits a wide range of torso and waist sizes, making it versatile for different body types. Recycled, bluesign-approved fabrics add durability without unnecessary bulk. While it lacks a raincover and favors lighter loads, the Exos 58 excels for hikers prioritizing comfort, airflow, and minimal weight on long-distance trails.

  • Pros: Very lightweight, excellent ventilation, comfortable carry
  • Cons: Limited padding for heavy loads, no raincover

See the Osprey Exos 58 See the Women’s Eja 58

4. REI Co-op Flash 55

REI Co-op Flash 55

  • Capacity: 53–57 liters
  • Weight: 2 lbs. 12–14 oz.
  • Frame: Spring steel
  • Pockets: 9 exterior

The REI Co-op Flash 55 is built for hikers who want an ultralight pack without sacrificing versatility. Its low weight makes it ideal for long-distance trips, while the adjustable torso and interchangeable hipbelt options help dial in a precise fit. The frame offers enough support for moderate loads while keeping overall bulk to a minimum.

What sets the Flash 55 apart is its modular design. The removable daypack and multiple external pockets provide flexibility for different trip styles. Recycled ripstop nylon keeps the pack tough enough for repeated trail use. Although it lacks a raincover, the Flash 55 is an excellent choice for minimalist backpackers who value customization and efficiency.

  • Pros: Ultralight, highly adjustable, modular design
  • Cons: Less support for heavy loads, raincover not included

View Men’s at REI View Women’s at REI

5. Osprey Rook 65

Osprey Rook 65

  • Capacity: 65 liters
  • Weight: 3 lbs. 11–14 oz.
  • Frame: Aluminum
  • Raincover: Included

The Osprey Rook 65 is designed for comfort-focused backpackers carrying heavier loads. Its adjustable torso system and suspended mesh back panel provide excellent ventilation and support. The aluminum frame and peripheral hoop help stabilize the pack, even when fully loaded for extended trips.

A dedicated sleeping bag compartment, multiple exterior pockets, and included raincover make this pack trail-ready right out of the box. The recycled polyester fabric is durable and handles rough use well. While it is heavier than ultralight alternatives, the Rook 65 excels for hikers who want comfort, organization, and all-weather readiness.

  • Pros: Comfortable carry, raincover included, great ventilation
  • Cons: Heavier build, fewer pockets than some rivals

See the Osprey Rook 65 See the Women’s Renn 65

6. WoneNice 50L Hiking Backpack

WoneNice 50L Hiking Backpack

  • Capacity: 50 liters
  • Material: Polyester & nylon
  • Raincover: Included
  • Fit: Adjustable straps

The WoneNice 50L is a budget-friendly backpack aimed at casual hikers and weekend campers. Its spacious main compartment and multiple pockets make organization straightforward, while the sleeping bag compartment keeps bulky items separated. The included raincover adds extra value for unpredictable weather.

Padded shoulder straps and a breathable back panel improve comfort for moderate loads. While the materials are not as refined as premium brands, they are durable enough for regular use. This pack is best suited for beginners or occasional hikers looking for an affordable, practical solution.

  • Pros: Affordable, raincover included, good storage
  • Cons: Heavier feel, limited long-term durability

See the WoneNice 50L Hiking Backpack

7. Maelstrom Hiking Backpack

Maelstrom Hiking Backpack

  • Capacity: 40 liters
  • Material: 210D ripstop nylon
  • Raincover: Included
  • Features: Reflective & whistle buckle

The Maelstrom Hiking Backpack focuses on comfort and safety for day hikes and short trips. Its ripstop nylon fabric resists tears and abrasion, while the included raincover helps protect gear in wet conditions. The padded back panel and shoulder straps reduce fatigue during long days on the trail.

Multiple compartments, including a wet pocket, allow for organized packing. Reflective details and a built-in whistle add useful safety features. While the 40L capacity limits multi-day use, this pack is a solid option for hikers seeking comfort and smart features in a lightweight design.

  • Pros: Comfortable, safety features, raincover included
  • Cons: Limited capacity, not for heavy loads

See the Maelstrom Hiking Backpack

8. G4Free 35L Hiking Backpack

G4Free 35L Hiking Backpack

  • Capacity: 35 liters
  • Weight: 2.14 lbs.
  • Raincover: Included
  • Use: Day hikes & travel

The G4Free 35L is a compact, lightweight backpack designed for short trips and travel. Its size meets most airline carry-on requirements, making it versatile for both hiking and everyday use. Breathable shoulder straps and a ventilated back panel help keep you comfortable during active outings.

Despite its smaller size, the pack offers smart organization with multiple compartments and waist pockets. The included raincover and hydration compatibility add extra convenience. While it is not intended for heavy or extended loads, the G4Free 35L is a practical choice for minimalist hikers and travelers.

  • Pros: Lightweight, versatile, good organization
  • Cons: Limited capacity, minimal padding

See the G4Free 35L Hiking Backpack

How to Choose a Thru-Hiking Backpack

Choosing a backpack for a thru-hike is one of the most critical gear decisions you will make. Unlike a weekend trip, a thru-hike demands a pack that is a reliable companion for hundreds or thousands of miles, through all weather conditions, carrying everything you need to survive and thrive. The right pack feels like an extension of your body, while the wrong one can lead to misery, pain, and even injury. This guide will walk you through the key factors to consider, helping you select the perfect pack for your long-distance journey.

1. Understand Thru-Hiking Demands

Before looking at specific packs, it’s essential to understand what makes thru-hiking unique. You will carry your home on your back for months. Your pack must manage a base weight (your gear minus food and water) that is typically between 10-20 pounds for a lightweight or ultralight setup, plus several days of food and up to 2 liters of water at a time. It needs to withstand constant abrasion from rocks and trees, survive rain and mud, and endure daily loading and unloading. Durability, long-term comfort, and efficient organization are not luxuries here—they are necessities.

2. The Foundational Fit: Torso Length and Hipbelt

Comfort is paramount, and it starts with proper fit. A pack’s size is determined by your torso length, not your height.

Measuring Your Torso

Find the bony bump at the base of your neck (the 7th cervical vertebra). Tilt your head forward; the most prominent bone is your starting point. Then, locate the tops of your iliac crests—the two wings of your hip bones. Measure the distance between these two points along your spine. This is your torso length. Packs come in small, medium, and large ranges (e.g., 16-18″, 18-20″, 20-22″). Choose the pack size that corresponds to your measurement.

The Hipbelt’s Role

A thru-hiking pack should carry 80% or more of its weight on your hips, not your shoulders. The hipbelt must sit securely on top of your iliac crests. It should be well-padded, easily adjustable, and conform to your body. Many manufacturers offer different hipbelt sizes for a more precise fit. A proper hipbelt is the cornerstone of carrying heavy food loads comfortably.

3. Capacity: How Big is Big Enough?

Capacity is measured in liters. For most modern thru-hikers, the sweet spot is between 50 and 65 liters. Your choice depends entirely on your gear volume.

The Gear-First Rule

Do not buy a pack first. First, assemble all your other gear: shelter, sleep system, clothing, cook kit, etc. Pack it into a cardboard box or a large, compressible bag. Measure the volume it takes up. This is your minimum required capacity, not counting food. Then add space for a bear canister if required (like on the PCT), which often needs to fit inside the pack.

General Capacity Guidelines

  • Ultralight (Base Weight under 10 lbs): 40-50 liter packs. Often frameless or with minimal frames.
  • Lightweight (Base Weight 10-20 lbs): 50-60 liter packs. The most common and versatile range for thru-hikers.
  • Traditional (Base Weight over 20 lbs): 60-70+ liter packs. Offers more support and space for bulkier gear.

4. Weight and Frame: Support vs. Ounces

This is the trade-off between comfort and weight savings.

Internal Frame Packs

The standard for thru-hiking. They use aluminum stays, carbon framesheets, or tensioned mesh panels to transfer weight to the hips. They offer excellent stability and load management, especially important with variable food weights. Ideal for most hikers, especially those starting out.

Frameless Packs

Ultralight sacks with little to no structure. They require a very low base weight (typically under 10-12 lbs) and excellent packing technique, as the pack’s shape comes from your gear. They are less comfortable with heavy food and water loads but can save a pound or more.

Pack Weight Itself

A pack’s empty weight often indicates its features and durability. Lightweight internal frame packs weigh 2-3.5 lbs. Ultralight framed packs are 1.5-2.5 lbs. Frameless packs can be under 1 lb. Consider the pack’s weight as part of your total system—a lighter pack allows you to carry more food/water comfortably.

5. Key Features for the Long Haul

Look for these functional elements that make life on trail easier.

Access: Top-Loader vs. Panel-Loader

  • Top-Loaders: More traditional, simple, and often lighter. They force you to pack smarter and can be more weather-resistant. Accessing items at the bottom requires unpacking.
  • Panel-Loaders (Zipper Access): Feature a U-shaped or J-shaped zipper on the front or side for easy access to all your gear without digging. Slightly heavier but incredibly convenient for organization.

Pockets and Organization

  • Water Bottle Pockets: Stretchy, deep pockets you can reach without taking off the pack are essential.
  • Front Stretch Pocket: A giant “shove-it” pocket for rain gear, snacks, or a wet tent.
  • Hipbelt Pockets: Crucial for keeping small essentials like phone, snacks, sunscreen, and lip balm within easy reach.
  • Shoulder Strap Pocket: Perfect for a camera or more snacks.
  • Lid/Pocketless Top: A removable lid adds a brain pocket but adds weight. Many opt for a roll-top closure, which is lighter and more adjustable.

Hydration and Ventilation

  • Hydration Port: A hose port for a water bladder.
  • Back Panel Ventilation: A trampoline-style suspended mesh back panel (like Osprey’s AirSpeed) greatly improves airflow and reduces sweaty backs, a major comfort upgrade.

6. Material and Durability

Your pack will be abused. Look for robust fabrics.

  • Common Fabrics: Nylon (like Robic or Cordura) is standard. Dyneema Composite Fabric (DCF) is ultralight, waterproof, and very expensive, but can be less abrasion-resistant.
  • Denier (D): Refers to fabric thickness. 100D-210D is common for pack bodies, with higher denier (e.g., 400D-500D) on high-wear areas like the bottom.
  • Water Resistance: Most packs are made from water-resistant, not waterproof, fabric. Always use a pack liner (a trash compactor bag) or dry bags inside to keep your gear dry.

7. Try Before You Buy (If Possible)

If you can, visit a specialty store. An empty pack feels nothing like a loaded one.

The Fitting Process

  1. Have the store associate measure your torso and help adjust the pack.
  2. Load the pack with 20-30 pounds of sandbags or pillows to simulate a full load.
  3. Walk around the store for 10-15 minutes. Pay attention to pressure points on your shoulders, hips, and back.
  4. Adjust the load lifters (straps at the top of the shoulders) and sternum strap. A well-fitted pack should feel balanced and stable.

8. Final Checklist Before Purchasing

  • Does it fit my torso and hip measurements?
  • Does it comfortably hold all my gear plus 4-5 days of food?
  • Can it accommodate a required bear canister vertically?
  • Is the access style (top vs. panel) right for my organization style?
  • Are the pockets placed well for my reach and needs?
  • Does the ventilation system work for my climate (sweaty back or not)?
  • Is the weight of the empty pack acceptable for my total base weight goal?

Choosing a thru-hiking backpack is a deeply personal decision that balances numbers (liters, ounces) with feel (fit, comfort). By methodically working through these steps—starting with your gear, prioritizing fit, and selecting features that match your hiking style—you will find a pack that becomes a trusted partner, not a burden, from the first step to the last on your long trail journey.