Ogio No Drag Rain Cover A backpack full of soggy stuff is a major drag. Keep the contents of your Ogio No Drag Mach 1 Backpack dry with this waterproof cover. Features 210 denier polyester oxford with waterproof PU coating Reflective Ogio logo and accent panels for added visibility Velcro brand fastener straps secure rain cover to shoulder harness Elastic binding securely cinches around pack for a snug fit