The Rail Bike Hydration rucksack from the quality brand Thule has the ReTrakt drinking system and has a secure fit that prevents the rucksack from moving during an intensive mountain bike ride. The ReTrakt drinking system is equipped with a magnetic strip, which means that the hose will store itself after use. The 2.5 L HydraPak reservoir has a handy sliding opening, making it easy to clean. The drinking spout is provided with a sealing mechanism, which prevents leaks. Thanks to the optimum weight distribution you also use less muscle power. The handy loops can be used to attach pads, a helmet, and a chin guard. Food, clothing, and other items can be accessed quickly during your bike ride without having to take the bag off. Tools, pumps, snacks, or anything else you want to take with you can be conveniently stored in one of the handy compartments. The reflective details ensure good visibility in underexposed situations.