.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;}The all-new Purist Insulated features our Chromatek(TM) liner-a proprietary insulating barrier that lines the core to keep your liquids cold. Not only do your liquids stay cold, but new squeezable materials allow for unmatched flexibility, too.The Purist Insulated Chromatek Bottles still feature an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass.The Omni Self-sealing Heart Valve(TM) delivers a high rate of flow with a leak-proof design, even when the valve is open. Refined no-slip grip design and polished surface for easy use. BPA-Free plastic is made from 100% FDA food- grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials.Chromatek(TM) liner keeps your liquids cold.Purist infusion shields the bottle from odor, stains, and mold to keep your water pure and your bottle clean.Rubber over-molded on the outside of cap for an easy grip.Self-sealing Heart Valve(TM) delivers a high rate of flow with a 100% leak-proof design, even when the valve is open.Smaller mouthpiece size for better mouthfeel and easier engagement. Simple hands-free open and close valve.Updated materials make for unmatched squeezability.