Whether your blazing trails, owning roads, on your feet or on your bike, you'll need to stay hydrated. Biology 101. The Medalist Boost Hydration Pack will enable you to push the limits at the greatest convenience. It includes a 2 liter reservoir, water pipe with mouth piece, organizing pockets and additional compartments. At a weight of 0.55kg the Boost offers a spacious 18 liter carrying capacity. No more holding back, no more wasting time! Push the limits and embrace the world with the Medalist Boost Hydration Pack. Available in blue and red.