PREMIUM QUALITY: These coolies are made of true neoprene, identical to wet-suits, and not foam. Neoprene is a far better insulator and longer lasting. Keep your drink ice cold and your hands warm and dry even in the sun. The stitching has a nice feel in the hand and is very durable. PERSONALIZE THEM: The can covers are completely blank allowing you to personalize around and the bottom of the can cover. Use iron-on, vinyl transfer or other methods to create unique party favors.