21st Birthday Gifts For All In Dog Years Would Be 147 6 Pack Can Coolie Drink Coolers Coolies Black A funny 21st birthday gift for a dog lover or dog owner. Premium full color sublimation printing creates vibrant and long lasting colors. Holds 12 oz cans or 12-16 oz bottles. Folds flat for easy storage. Machine washable. Premium 1/8 inch thick high density open cell polyurethane foam keeps beverages cool. The pictured design will be featured on both sides of the coolie so that you can see it from every angle.