Get ready for a long season of running and be sure you will stay hydrated with the Nathan VaporStorm Hydration Waist Belt. The unique design of this water bottle carrier situates the length of the water bottle horizontally across your back. The back of this pack was constructed with moisture wicking fabric to reduce the moisture build up on your back during your workouts. In order to guarantee you the best fit, the dual adjusting waist belt straps will afford you the most options to ensure the best fit for you. An insulated holster will keep your water cooler while you're out on your runs so you don't have to be drinking warm water 30 minutes into your run. Get this hydration system for yourself this season so you'll never go thirsty on the trails again!