Review on CYGQ Neoprene Protable Insulated Adjustable by Robert Ryokan

I used this thin insulated belt for the first time this weekend in the White Mountains of New Hampshire. The hikes were short (about 3 hours) but even in single digit temperatures this thin insulation kept the water in the bottle from freezing. The liquid was added to the metal bottle I used immediately after boiling and I was still able to handle the metal bottle while it was in the sleeve. It was warm at least half the way. I expect if I use cold or room temperature water it would freeze before the hike is over, but for short hikes when the water is hot to start it works well.