The name says it all; the Camelback 70 oz Marathoner Hydration Vest is designed for long distance running. The lightweight ripstop and mesh vest fits your body securely without interfering with your running gate. The 70 ounce hydration bladder is well supported and secure for worry- and hassle-free running on and off the road. The vest includes easy-access pockets for essential food or safety items, while the hydration bladder serves up Camelback's years of experience in the hydration business with its easy-to-clean wide-mouth opening, Big Bite™ valve and lifetime guarantee. You know the importance of staying hydrated; now discover how easy it can be with the Camelback Marathoner Hydration Vest.