Nathan Add On Flask Black
Nathan athletes have always been vocal about what they want in a belt, which is why this year, we introduce the Build-Your-Own-Belt system. Clever add-ons like pockets, race number clips, and 8 oz. Flasks let the athlete add as muchor as littleas needed to their favorite Nathan belt, while a fully-adjustable base belt offers an option for those who want to build from the ground up.
