Limited-stretch, ultra-soft, VELCRO closure belt stays bounce-free while molded holsters with two 10 oz/300 ml Flasks guarantee one-handed, on-the-fly access.*For belt: hand-wash only. Penguin Sport-Wash recommended*Flasks and caps are dishwasher-safe (top rack only)*Flasks are BPA-free*Not for use with hot liquids ? do not microwave*Size: S: 26-32?/66-81cm, M: 32-38?/81-97cm, L: 38-44?/97-112cm, XL: 44-50?/112-127cm*Weight: .8 lbs*Storage Capacity: .7 L / 45 cu in