Salomon Unisex Peak 30 Backpack 100% Other Fibers Imported The peak 30 fits well enough to be precise and stable for moderate running, but it's large and comfortable enough for light overnights. Motion fit trail and air vent agility+ system. It moves comfortably with you while holding the load stable. Light materials, no extra features, and a mesh belt keep the weight feathery Perforated EVA shoulder straps Compatible with 1.5L bladder/bladder hanging system/compatible with soft flask (500Ml)/external bladder soft compartment