The FuelBelt Revenge 2 Bottle hydration waist belt is a breakthrough in hydration belt design and function. One handed entry and exit has never been easier with the unique and cleverly designed molded holsters. With just one hand, bottles go in fast and come out faster. Helium therma foam construction is breathable and stable Removable race pocket large zippered pocket for your gels, bars etc Plastic Molded Holster provides quick one handed entry and exit while YOU stay in motion. Two 7 oz. bottles Reflective elements allow for visibility in low lighting.