This backpack features a 20L capacity, durable pvc tarpaulin material and a sleeve to store and still use your phone. Have easy access to gear with the outside mesh zip pocket and bungee cords. Features: 20L capacity Durable 250D tarpaulin PVC material Slide your phone into the clear phone sleeve to continue to talk, text, search and more 8.5"x5" mesh front zip pocket with bungee cord 2 section padded back supports Padded shoulder straps and chest strap