When it's hot outside (news flash: it is), nothing beats a cold beverage to help cool you down. The Chill Glass is meant to deliver icy-cold refreshment whenever it's needed. The upper portion is made from double-walled borosilicate glass, with a biosafe thermal freezable liquid in between that can keep things cold for up to an hour (why are you taking that long?). It sits on a cork base that offers easier handling to the drinker and more padding for the drink.