The fluorocarbon-free TPE coating on the inside makes the fabric waterproof and provides additional robustness Roll-top system to scale capacity closes with a hook and loop fastener Zipped fast access to the main compartment Two pockets outside for e.g. bike lock or umbrella One pocket outside closes with a water-repellent zipper High quality neoprene laptop compartment (up to 15.4") with two additional mesh pockets for phone and wallet Additional elastic band bottle holder and key strap inside Reinforced back with padding for more comfort Padded and adjustable shoulder straps for more comfort Padded bottom part for stability Embossed 'Ucon Acrobatics' label made out of high-grade vegan leather Shell material: Recycled polyester from PET-bottles with durable and waterproof TPE coating, PVC & PFC-free Dimensions rolled out: 22 x 11 x 3.9 in Dimensions rolled in: 16.5 x 11 x 3.9 in Capacity rolled out: 16 l Capacity rolled in: 12 l Weight: 1.3 lbs