Roll closure, light materials and carefully designed details help keep the weight down. - Main material: 210 denier Cordura fabric, with Spectra Ripstop reinforcements - X-Shield back panel - Lower compression straps can be used for carrying skis - Detachable rope holder - Back panel length 48 cm - Detachable hip belt - Chest strap with a whistle in its buckle - Two ice axe holders The Spectra fibers used in the reinforcements is 15 times tougher than steel in relation to its weight.