Delivering 50 more water than leading bottles easy to open effortless to use and leak proof when closed with the purist technology for clean pure refreshment puristt inner surface uses a flexible glass like infusion to keep your water pure and your bottle clean o ring sealed leak proof cap locks down for transport or mixing powdered drinks large screw top design is leak free and wide enough for ice cubes and powder drink mix wide water channel delivers up to 50 greater flow than other le