The Petzl BUG Climbing Pack is a low profile pack built for rock Climbing. Designed for single days, carry the essentials through the approach and even while Climbing. Access gear such as rope, hydration, shoes or an extra layer. When you're not Climbing, it's small enough to use as a day pack around town, carrying your laptop. Features of the Petzl BUG Climbing Pack Compact, ergonomic shape for maximum mobility during Climbing or everyday use 18 Liter volume for transporting equipment Low profile shape sits snuggly against your back Adaptable for Climbing or everyday use Side compression straps Adjustable strap for attaching a rope to the top of the pack Wide exterior pocket, interior compartment for hydration system or laptop, wallet pocket, topo pocket in back of pack Stowaway waistbelt Adjustable sternum strap helps stabilize the pack while Climbing Very durable: bottom and sides lined with High tenacity fabric