The brand new Purist Insulated water bottle from Specialized features the innovative Chromatek™ liner, a special insulating barrier that keeps your drinks cold. The new squeezable materials used in this bottle provide unmatched flexibility. The Purist Insulated Chromatek™ bottles also include an amorphous silicon dioxide coating on the inner wall. This coating creates a glass-like finish that prevents your drinks from staining the bottle or leaving any residual aftertaste. It also ensures that your water tastes fresh and not like plastic, even on the hottest days.To top it off, the Watergate cap on this bottle has a Heart Valve™ that opens and closes hands-free. Say goodbye to spills and leaks!Upgrade your cycling experience with the all-new Purist Insulated water bottle from Specialized. Stay hydrated and enjoy your rides with cold refreshing drinks!