Dowco Fastrax Hydration Bladder offers 1 liter capacity. For use with Fastrax Elite Series Sport and Adventure Tour Luggage Tank Bag. Dowco"s exclusive luggage color matching design system, which lets riders coordinate their luggage to their bike. Colors include red, yellow, pink, green, blue, black, silver, pearl white and orange. The method you choose to store your ride and gear is a critical decision. Storing it outdoor, indoor or both, factors like waterproof and water resistant options must be considered; you also need to think about fade resistance and security factors.