It’s become a staple. The short rides, the long rides, the mid adventure stop at a nearby stream to fill up and refresh. From the everyday grind to the outdoors. It’s the original, and it’s here to stay. Purist features 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. Mo Flow lid: Easy to open, effortless to use, and leak-proof when closed. Made from easy-to-squeeze LDPE material. Clear viewing strip makes it easy to see the bottle's contents. 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.