I know a lot of us also suffer from MCAS and Dysautonomia, and have some pretty bad temperature regulation issues. My husband surprised me with this yesterday. I didn’t even know it existed! It’s so cold that it almost feels like an ice pack!
I will add that I live in a currently cold climate and my house is in the 60s, so it hasn’t been tested in a hot climate yet. The cold side is a silky nylon/polyethylene blend. And the other side is 100% cotton.
HIGHLY RECOMMEND for others who get to hot, like myself! Now if only they made clothes out of it to go out in public in!!