Review on Nalgene Bottle Carrier Insulated: Keep Your 32 Oz Bottles Cold in Gray by Michael Nard

July 2020 Update: I used this regularly (1-2 times a week) for about 6 years before the zipper completely failed. Previously, the outer material had worn out and the small silicone grip (or whatever) on the carrying strap broke after about 3 years. I upgraded 3-4 stars for the duration. If the cap and band were a better fit it would be 5. I've already ordered a new one to replace the broken one. First rating: OK. Not cool. Not good. This cools the bottle down a bit. A bonus that I didn't think of is that a cold bottle prevents condensation from forming and getting everything wet. It seems to be holding up well, except for the tip. The seams inside have already started to unravel. Probably because it's not big enough to fit on a strap bottle cap. The lid presses on the strap as it closes, which causes the weak seam to come out. However, this does not affect the overall function too much.