Netpack 40" Ultra Simple Wheeled Duffel (Black) Made of 1000 d nylon & polyester for maximum durability & protection. Heavy duty polycarbonate bottom frame structure for light weight and maximum reinforcements. Heavy-duty telescopic handle and four riveted grab handles and x stitch reinforced padded handle wrap. Easy single hand action, recessed locking telescopic trolley system. Telescoping trolley handle extends to a max height of 42". Handle rest flush fit into bag.