600D recycled polyester made from rPET bottles;Adjust for the day's activities with the flexible rolltop design that allows space for extra packing; Separate zippered padded laptop pocket, fits most 15" laptops; Front zippered pocket ; Water bottle holders on each side; Padded straps and back with luggage pass through; Product Size: 10.63" W x 16.93" L x 6.10" D;