Port Authority BG76S Wheeled Backpack polyester 600 denier polyester with ripstop accents and rubber bottom Two large front pockets, side pockets and mesh water bottle holder One-hand push button pulley system for easy use and stowage; handle extends to 18.5" Smooth, durable inline skate wheels Dimensions: 20.5"h x 13"w x 7.9"d; Approx. 2,097 cubic inches