Material: all made with 1800 denier water repellent polyester honeycomb bottom ( for best support ). Rollerblade wheels . pull-up handle with push button for easy operation. Interior is fully lined. Up-right board at end side of wheels to contain load. Corners protected with hard rubber bumpers. 4 outside pockets. Adjustable shoulder strap. Limited Lifetime Warranty. Size: 32"x 14"x 16" Linear: 62" 7168 cu. in.