A light backpack for cycling in the city, the Dalston Tex Nylon is made from a waterproof ripstop fabric woven using a special pattern to withstand rips and tears. Waterproof fabric PU coated Vegetable tanned leather details Quick release alloy buckle Adjustable cotton straps AquaGuard zip Metal Puller zip 13" or 15" laptop compartment Three external pockets Two-way, super stretch lateral pocket Chest strap adapter 20L: W 300 x D 145 x H 460 mm Brooks England Dalston Tex-Nylon 20L Backpack