3-way Propulsion Harness. Lightweight, breathable Wall Mesh with soft perimeter binding. Contoured back panel 2 liter Hydration Bladder with a Slideseal top closure.. Dual zipper opening with Velcro flap for rapid access to bladder - no need to remove bladder to fill Angled rear compartment. Dual front pockets - one mesh holster, one zippered. Front water-resistant pill pocket. Front Power Stretch Mesh gel pocket Shock Cord with one-pull tension lock for jacket or gloves. Vertically adjustable sternum strap with tube clip Total capacity: 300 cu. in. (4.92 L). Cargo capacity: 175 cu. in. (2.87 L). Dry weight: 11 oz. (.31 kg)