Bringing trad and sport climbers access to a wide variety of packing options the Sterling Wonderwall Crag 33L Pack is a robust roll-top top-loader bag with an ultra-comfortable carry and conveniently organized design. The burly 420D nylon fabric withstands rough-and-tumble hikes to the crag while the internal compression harness is there to keep our gear from shifting. An integrated hydration hose port and bladder sleeve give us the option for easy sipping (reservoir sold separately) and the wide-mouth duffel opening ensures we don't have to dig around blindly for gear.