Amphipod® - running, race and adventure gear engineered for unmatched comfort and performance. Amphipod specifically makes hydration belts, bottle packs, handheld bottle carriers, customizable hydration packs and belts, low-profile bottles, bottles for running and outdoor, Stainless steel bottles for running and active sports, quick access add-on hydration bottles and flasks, nutrition and energy fuel belts and carriers, snap-access nutrition carriers, energy/fuel gel flasks and carriers.