Genuine KTM OGIO Erzberg Hydration Bag Pack 70 ounces 70oz 100% polyester outer material for protection from extreme weather conditions; coated with DWR. Thanks to its flat design, the Erzberg Hydration Pack fits under or over the chest protector and shirt. Two elastic net pockets on the shoulder straps. Padded Airmesh back panel for wicking moisture away from the skin. Ergonomic shoulder strap with adjustable chest strap and hose routing. Pocket on the front. Concealed zips protect it from dirt and foreign bodies. Reflective decorative seam increases visibility in poor light conditions. Including two-litre Hydration Pack Bladder. Size approx. 35 x 17 x 5 cm; weight approx. 0.3 kg; volume approx. 0.3 litres; drink system capacity 2 litres