Constructed Of Rugged Tactical Polyester. Key Features Include: "Convertible System"- A Sling Pack That Easily Converts To A waist Pack In Seconds. One Large Main Compartment With Mesh Storage Pockets, Rear Hydration Compartment, Two Front Pockets, One With Universal Holster, Two Side Pockets With Exterior Quick Access Sleeves, Fully Adjustable Padded Sling Strap Can Be Used As A Padded Shoulder Strap Or Waist Strap. Heavy Duty Nylon Coil Zippers With Pull Cords And Tabs. Upper Carry Handle. Readily Accepts modular Components. Replica of Army & Military. Many People Use This Item For School, Camping, Fishing, Work, Traveling. Not Limited to These. High Quality And Made To Last. Size: 19 x 10 x 6 inches; (Main Compartment) 19 x 15.5 x 8 (Including Exterior Pouches).