The specialized purist moflow bottle our highest rate of flow delivering 50 more water than leading bottles easy to open effortless to use and leak proof when closed with purist technology for clean pure refreshment specialized purist moflow bottle features the puristtrade inner surface uses a flexible glass like infusion to keep your water pure and your bottle clean large screw top design is leak free and wide enough for ice cubes and powder drink mix new moflo cap desig