Comfort Grip Wrap Cup Sleeves are made from a delicate, but sturdy, translucent, fine-spun plastic foam. The inside coating of hot cups acts as a paper cup liner. The material protects the user from "paper taste" and "odor" and protects the true gourmet flavor of the beverage. Our wrap helps make a hot cup easy to hold.On cold cups, our wrap acts as a barrier between warm hands holding the cup and the beverage inside, reducing wetness.