Our coffee coozies are the perfect addition to your iced coffees or cold drinks! They are designed to fit snug with most standard cold to-go cups and tumblers. Coffee coozies not only make it more comfortable to enjoy your drink, but provide additional thermal insulation to maintain the perfect temperature while reducing condensation! SIZING Medium Size: 16-18 oz. Holds grande from Starbucks, small from Dunkin, medium from Tim Hortons, McDonalds & local coffee shops! This size fits a lot of standard medium sizes. Large Size: 22-24 oz.Holds venti from Starbucks, medium from Dunkin, large from Tim Hortons & McDonalds! Details: 100% neoprene (waterproof)