Slimmed down from its big brother but with the same compliments, the Mammut Heron Light 55 Backpack boasts light and fast ventilated load control and range of motion for all your on / off the trail muscle-powered adventures. Featuring 2-layer, high-density EVA padding on the back panel, hipbelt and shoulder straps, this backpack provides breathable comfort and minimal contact points to ensure exceptional ventilation. Its pivoting hipbelt offers excellent load control and balance, even when scrambling or bushwhacking and the hipbelt angle adjusts for a customized fit. The Heron Light 55s 4-level back also adjusts to allow for an individualized fit of your torso length. Its flexible, anatomically-shaped 7mm aluminum V-frame offers superior range of motion and direct load transfer to the hipbelt. Carrying conveniences include a height-adjustable top lid that features internal and external zippered pockets, hydration-system compatibility that allows for hands-free drinking on the go, and separate zippered compartment at the bottom to accommodate a sleeping bag. For grabbing essentials on the fly a large stretch pocket on the front of the pack body is perfect for a rain jacket or other oft-accessed gear, 2 side stretch pockets and stowable bottle holder for carrying water bottles or other small items, and a small hipbelt pocket that is ideal for snacks. Ice axe loops and trekking pole straps let you lash tools to the exterior of the pack, while compression straps snug the load at the sides or front of the pack. This Mammut backpack allows you to go high - go light with everything you need at your finger tips.