polyester Four expanding compartments; Main compartment features a clam shell style design; Two external pockets for quick access to essentials Fully adjustable contoured and padded shoulder straps; Adjustable waist and sternum straps; Reinforced carry handle Mesh ventilated padded back panel with touch-fastener-closure external pocket that serves as concealed pocket or accepts hydration bladder up to 2.5 liters Quick-release compression straps on three sides; Touch-fastener keepers for excess strap slack; Clad in MOLLE webbing for expansion and customization 35 liters of storage; Dimensions 11.5”W x 18”H x 12”D Reinforced carry handle Mesh ventilated padded back panel with Velcro top closure Fully adjustable contoured padded shoulder straps with hard plastic D-rings for attachments 2.5 liter external organizer pocket for survival and outdoor essentials Four quick release compression straps for expansion or consolidation Molle webbing throughout for attaching additional pouches or gear Adjustable waist and sternum strap Velcro keepers for excess strap slack 600 Denier PVC lined Polyester construction Measures: 11"W x 14"D x 20"H Weight: 3.25 lbs. Show more