Thule Vital is a lightweight hydration backpack for cyclists and ideal for tours of several hours. Due to its optimal weight distribution and low centre of gravity, it hardly strains the muscles. The cyclists can drink without stopping because their hands remain free thanks to the ReTrakt hose return system. In the practical patch pockets, provisions, clothing or tools can be quickly accessed while riding and without removing the backpack. The pack is available with a 1.75 or 2.5 litre hydration bladder.