Nathan Peak Hydration Waist Pack in black. It is in like new condition with no flaws. I only used it out once. Comes with water flask as pictured. Perfect running belt! WEBSITE DESCRIPTION Extended side panels hug the body comfortably for a perfect fit while you keep stride. The angled bottle holder allows for easy one-handed access and a bounce free ride. Expandable zippered stretch pocket keeps essentials protected, easily accessible and fits most large-format smartphones. The external shock cord system allows for extra storage options.