Long training runs, day hikes and bike rides are ideal for CamelBak's Delaney DC. This waist pack conveniently and comfortably carries two 21oz insulated bottles and two gel flasks so you can stay hydrated on the go. Plus, the Delaney has some room for your phone, keys and an energy bar. Bungee cords let you stash a lightweight shell to the outside, too. Side cinch belts keep the pack from bouncing and secure your gear.