These wine glass cozies are handy to have on your glass. Not only do they stop your wine glass from sweating but they insulate your wine as well. Wine glasses have a tendency to slip from your hand due to the glass sweating, these help you get a better grip on your glass. They can even be personalized with a name under the image if you choose. It's also helpful to have your own colorful glass cozy so you know what drink is yours! Great for weddings, parties, and family get togethers. These wine glass sleeves fit an average sized wine glass or the wine tumbler. Coolers are made of Scuba knit neoprene.