You are planning a multi-day trek and every ounce matters. Your backpack is your home on the trail, but a heavy pack can turn a dream trip into a slog. That is why finding the best ultralight backpacking backpack is essential. In this guide, we have evaluated nine top models from Osprey, Naturehike, and ROYAL MOUNTAIN to help you shave weight without sacrificing comfort or durability. Whether you are a weekend warrior or a thru hiker, these picks will lighten your load. For more tips on keeping gear dry, read our roundup of waterproof hiking backpacks.
Buying Guide: How to Choose an Ultralight Backpacking Backpack
Capacity and Volume
Consider how many days you will be out and what gear you carry. For overnight trips, a 38 to 48 liter pack like the Osprey Eja 38L Women’s Ultralight Backpacking or Osprey Exos 38L Men’s Ultralight Backpacking works well. Longer expeditions may need a 58 to 65 liter pack such as the Osprey Exos 58L Men’s Ultralight Backpacking or the Naturehike 65L Rock Upgraded Internal Frame Hiking. A larger capacity gives you room for extra clothing, food, and a tent. However, bigger packs often weigh more, so balance volume with weight.
Suspension and Fit
A well fitting suspension system transfers load to your hips and reduces shoulder strain. Osprey models like the Eja and Exos feature an adjustable Airspeed suspension that allows four inches of torso adjustability. This means you can dial in the fit regardless of your height. For women, the Eja line offers a specific cut with narrower shoulder straps and a contoured hipbelt. Naturehike packs use an ergonomic back panel with mesh padding for breathability. Always try on a pack with weight if possible, or measure your torso length to choose the right size.
Weight and Packability
The whole point of ultralight is low weight. Most packs in this review weigh between 2.5 and 2.9 pounds. The Osprey Eja 48L Women’s Ultralight Backpacking in purple weighs only 2.67 pounds. The Naturehike 65L Internal Frame Hiking Backpack weighs 2.56 pounds while offering 65 liters of space. Lightweight materials like the polymer fabric used in the Naturehike Rock upgraded pack combine strength with low weight. But do not forget that a lighter pack often lacks heavy padding, so the suspension must be efficient to keep you comfortable.
Features and Organization
Look for pockets and attachment points that suit your hiking style. Hipbelt pockets let you access snacks, phone, or a map without stopping. Internal hydration sleeves with a hose port make drinking on the move easy. Removable floating lids add versatility, allowing you to reduce weight on short trips. The Hiking Backpack,40L to 50L Extra Large Capacity from ROYAL MOUNTAIN includes a side pocket that doubles as a storage bag. For day hikes, also check out our picks for day trip backpacks.
Final Thoughts
Choosing the best ultralight backpacking backpack depends on your trip length, budget, and fit preferences. For a proven balance of weight and support, the Osprey Eja 38L Women’s Ultralight Backpacking stands out with its adjustable suspension and durable build, ideal for women seeking a tailored fit. If you need a larger capacity without breaking the bank, the Naturehike 65L Rock Upgraded Internal Frame Hiking offers incredible value with a robust polymer fabric and thoughtful organization. Both packs will serve you well on the trail, letting you focus on the journey rather than the weight on your shoulders.
Frequently Asked Questions
What size ultralight backpack do I need for a week long trip?
For a week long hike, you typically need 55 to 65 liters of capacity. This allows room for a tent, sleeping bag, clothing, and food. The Osprey Exos 58L Men’s Ultralight Backpacking and the Naturehike 65L models are popular choices. Also consider a hydration compatible pack to stay hydrated on the trail.
Are Osprey ultralight backpacks worth the investment?
Yes, Osprey packs are known for durable construction, excellent warranty, and superior suspension. Models like the Eja and Exos use high quality materials and adjustable frames that many backpackers find worth the cost. They are a reliable choice for frequent hikers.
Can I use an ultralight backpack for everyday travel?
Many ultralight backpacks work for travel because they are lightweight and compressible. The ROYAL MOUNTAIN 40L to 50L pack, for example, meets airline size limits. However, they lack the heavy padding of travel packs, so consider your comfort when carrying electronics or fragile items.
How do I clean and maintain an ultralight backpacking backpack?
Hand wash with mild soap and cold water. Avoid machine washing which can damage coatings. Air dry away from direct heat. Periodically check straps and seams for wear. For more care tips, see our guide on water storage containers for trips.
