Take the strain off by rolling this wheeled pack, or use the shoulder straps to carry it like a backpack. | 600 denier polyester with 300 denier mini ripstop accents and reinforced bottom Large main compartment with hooded zip closure 12-inch deep top front pocket Lower front pocket with padded protection One-hand push button pulley system for easy use and stowage; handle extends to 18.5' Air mesh shoulder straps tuck away into padded back Wheel cover stashes into zip pocket on back Smooth, durable inline skate wheels Dimensions: 18.5'h x 13'w x 7.9'd; Approx. 1,900 cubic inches Note: Bags not intended for use by children 12 and under. Includes a California Prop 65 and social responsibility hangtag.