Thanks to the USWE MTB Hydro 8 Hydration Pack, we don't have to worry about our hydration pack swinging around wildly as we descend technical sections of trail at mind-melting speeds. The highly adjustable No Dancing Monkey harness system not only keeps our pack from bouncing around but also creates a secure fit for every rider. Plus, the 3-liter hydration bladder keeps plenty of water close by for our biggest adventures.