Measures 9 1/2" x 4 1/2" x 17". Lightweight 500 Denier polyester construction. 2.5 liter hydration bladder (included). Contoured shoulder straps with sternum strap and quick-release buckles. Adjustable waist strap with quick-release buckle. Master compartment stores bladder. Velcro name strip on upper pocket. MOLLE webbing throughout for customization with pouch and attachments. Weighs 1.95lb. Color: Black.