The Jasper Medium Roll-Top Backpack by Ucon Acrobatics helps keep you hands-free when you need to be, from bike rides to shopping trips to music festivals. Crafted from a custom waterproof material made of 93% recycled PET plastic bottles, this bag is designed to be both comfortable and durable. Fit all your everyday essentials inside–they'll stay secure thanks to a roll-top that closes with a metal buckle. Features of the Jasper Medium Roll-Top Backpack include: Custom-developed tech material by Ucon Acrobatics. Optional flap-top or roll-top to scale volume. Vertical zipper for quick access to main compartment. Outside flap pocket closes with velcro closure. Upcycled neoprene interior compartment with built-in shock absorber fits a 16" laptop. Two mesh pockets for cell phone, wallet or cable. Elastic bottle holder and keychain inside. Reinforced back with padding. Adjustable and padded shoulder straps. Measures 18.5h x 12.5w x 5.5"d. Weighs 2lbs.