The Roll Model from Pusher Climbing has a wide zippered opening at mid-height, so you can access your stuff messenger-bag-style. That same opening allows you to get into the two 1000 ci chambers. With 2000 ci 33 cubic liters, there is more than ample space for a 70 meter rope, quickdraws, harness, water and more. Open the Velcro seam on the top of the Roll Model and dump all your junk inside. The Velcro seam is folded over itself, so nothing can drop out.