Fits red solo cup or large Dunkin Donuts / Starbucks ice coffee cup. Collapsible Foam. (16 oz to 22 oz Red solo cup) Toby Keith made the cups more popular with his song. We make them nicer to carry around. The top of the cup is still exposed to add your name with a marker too. Permanently dyed and fade resistant design. Great to keep track of your beverage and add a bit of flair to a gathering. Wash the hugger in your dishwasher or clothes washer. Design will not come off.