The Radical Light 21 is a mountaineering backpack from the brand Grivel. Designed for technical climbs, it is primarily lightweight, versatile, and comfortable on the ascent. A must-have for a wide variety of high-altitude adventures. Its dual closure system allows it to be just as efficient when barely filled as when fully packed. But what truly makes it an example of versatility are the following attributes: removable double ice axe holders, top strap that can serve as a helmet or rope holder, front zippered pocket with access to the main compartment, and a side access for the hydration pocket. To top it all off, a removable chest strap and a removable waist belt help distribute the weight optimally. Climb on! Materials: Nylon 210 D Compact and streamlined ergonomic shape Double drawstring closure for better compression in all situations (more or less full) Weight: 525 g Grivel Radical Light 21 - Climbing backpack