Made of 600D waterproof polyester material Removable deluxe adjustable non-slip strap 2 main compartments measuring 16" x 12" x 4" 39 1/2" retractable handle 16" x 13" x 9" Lockable file pocket 16" x 12" x 3" suitable for a laptop. Two zippered end pouches, one for a sharps container and one for hand wash supplies. A fold down work area. Perhaps the most complete wheeled medical bag on the market.