This is by far the Cadillac of closed cell foam pads. I've used ones from GG, even the zlite, and this one beats them all.
Reliable, and multi use... such as sit pad, windscreen, and there is virtually no set up time.
I swam across a freezing lake with this thing and was waiting on the other side trying to warm up (long story) and a dark storm was coming in fast. All I had was my swim suit on and I wrapped it around me to block the wind trying to get warm (it helped).
After about an hour I realized it was now or never, hypothermia or death :0... It started to hail and I jumped in the freezing water with the Ridgerest and swam back about 1/2 a mile. Then once I made it back I shook the water off and was able to warm up under my zpacks tarp.
:) true story!