Delivering a high rate of flow in a leak proof design the purist watergate offers a simple drinking experience just aim and squeeze for clean pure refreshmentpurist infusion shields the bottle from odor stains and mold to keep your water pure and your bottle cleansimple hands free open and close valve nothing to turn100 leak proof top locks down for transport or mixing powdered drinksself sealing heart valve delivers a high rate of flow with a leak proof design even when the valve is op