Thanks to its low center of gravity, the hydration bladder backpack has an optimal weight distribution, which improves the driving characteristics and relieves the muscles. The excellent stability and secure fit are also ideal for aggressive downhill rides, jumps and enduro races. The Thule ReTrakt drinking tube has a magnetic design that automatically snaps the tube back into place after drinking. That means you don't have to fiddle with the hydration pack and can fully concentrate on the challenging trail.