9 Best Mountain Biking Backpacks 2025 in the United States

The EVERFUN Hydration Backpack 18L is a versatile and spacious pack designed for mountain biking and other outdoor activities. With an impressive 18-liter capacity, it offers ample space for clothes, a first-aid kit, and other essentials. The nine functional divider pockets ensure that everything stays organized, including a built-in mesh pocket for valuables and special compartments for glasses and cameras. The external mesh pockets are convenient for carrying water bottles or trekking poles.

One standout feature is the insulated bladder compartment, which keeps liquids cool for up to 6 hours, making it ideal for long rides or hikes. It includes a 2-liter food-grade PEVA bladder with a high-flow bite valve, and supports up to a 3-liter bladder, catering to varying hydration needs. The backpack's high-density nylon fabric and built-in rain cover enhance durability and weather resistance, while reflective strips improve visibility in low-light conditions. Comfort is another strong point, thanks to the breathable padded back, and adjustable chest and waist straps, ensuring a stable fit for all body sizes.

At 1.7 pounds, it is lightweight enough for extended use without causing fatigue. However, its numerous pockets and compartments might make it seem bulky to some users, and the 2-liter bladder might not suffice for extremely long rides. Additionally, while the rain cover is a useful feature, its effectiveness in heavy rain remains to be tested. This hydration backpack is a solid choice for mountain bikers seeking a durable, comfortable, and well-organized pack.

The CamelBak M.U.L.E. 12 Mountain Biking Hydration Pack is a solid choice for mountain biking enthusiasts. Its 100oz (3 liters) hydration system is ample for long rides, and the magnetic tube trap ensures easy access to water without fumbling. The hydration pack includes a 9-liter capacity for other essentials, which is enough for tools, snacks, and a light jacket.

Fit and comfort are prioritized with the Air Support Back Panel and 3D Vent Mesh Harness, which provide excellent ventilation and all-day wearability. The removable waist strap adds extra stability, which is particularly useful on rough terrain. The pack's weight is reasonable at 810 grams, not too heavy for a comfortable ride. Durability is implicit with CamelBak's reputation and their 'Got Your Bak Lifetime Guarantee,' suggesting a long-lasting build.

The pack also includes 12 pockets for organization, making it easy to keep gear accessible and secure. The helmet carry feature is a thoughtful addition for those who want to store their helmet when not in use. The main drawbacks are the relatively small overall capacity (9 liters) for bulkier items and the higher price point, which might not be justified for casual riders. However, for serious mountain bikers, the features and reliability might be worth the investment.

The CamelBak Rogue Hydration Pack 85oz stands out for mountain biking with its practical hydration system. The Crux reservoir delivers 20% more water per sip, which is great for maintaining hydration on strenuous rides. Additionally, the ergonomic handle simplifies refilling, and the on/off lever helps prevent leaks. This pack's breathable air mesh back panel enhances comfort, making it suitable for long rides.

The magnetic Tube Trap keeps the drinking tube secure and within easy reach, which reduces distractions while biking. The external hooks are a nice touch, allowing you to carry your helmet conveniently without blocking access to the pack's contents. The stretch overflow compartment provides extra storage for items like a rain shell or additional clothing, making it versatile for varying weather conditions.

Some users might find the capacity of 2.5 liters slightly limited if they need to carry more gear for longer trips. At 0.46 kilograms, the pack is lightweight, which is beneficial for reducing fatigue. The pack's polyester and nylon materials contribute to its durability, ensuring it withstands rugged mountain biking conditions. Organization is well-thought-out with four pockets, including a secured zipper pocket for valuables. The CamelBak Rogue Hydration Pack is highly recommended for cyclists who prioritize hydration and comfort on the trail.