ThisWear 30th Birthday Decoration Gift Beer Bottle Coolie Made 1989 2 Pack Black The best birthday gift is a funny birthday gift. Celebrate with a funny 30th birthday gift! Fits most types of 12oz longneck bottles. Zips open for easy use. Machine washable. Premium 1/8" 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.