This thing is fun, very comfortable, eliminates the need for a coaster, but is not terribly effective at keeping drinks cold, dammit.
It's designed for tall-neck bottles, but it also works well on stubby bottles, by squeezing the sides together while zipping up, and then folding the neck down slightly.
But then I got scientific, and measured what difference it makes. I took two beer bottles with water cooled to 40F, wrapped one while leaving the other one uncovered (the room temperature was 70F) and measured every five minutes with a probe thermometer. In short, after 45 min, there was only 3F (52 vs 55) difference between them.
The beer FEELS colder when drinking from a wrapped bottle, because your hand is grasping something warm, so the cold beer is a surprise. I'll keep using it, but will look around for something more effective.
on June 8, 2013
Absolutely LOVE it! Very pretty, keeps the beer cold, and easy on your hand; easy to use, and washable. Very nice looking. Ha, I love putting the beer bottle in it's little "pajamas"... Great well made zipper on it.
on January 22, 2013
I've been looking in stores for this item for some time, but couldn't find it anywhere. The koozie fits my bottles well, although I don't yet know if it will fit all the different shapes on the market today. Can't wait to try it in hot weather!
on October 11, 2012
I was hoping these would fit on 12 ounce soda bottles, but they only fit the 12 ounce glass beer bottles. They aren't cheap, so for the amount of use they will get by us, these were not a good deal.