Features 600D HDTEX polyester and heavy duty #10 nylon coil zipper on lower opening Large capacity top loading main compartment and scalloped side compression straps Padded back and shoulder straps with Air-Flow mesh and detachable cell phone holder on shoulder strap Torso adjustment and adjustable stabilizer straps Capacity: 3965 cubic Inch (65 L) Description Product Description Chinook packs feature ergonomic comfort, load-carrying reliability, top quality materials and a limited lifetime warranty.