600D recycled polyester made from rPET; 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