Ice Back wraps for people

I know some people on this froum have MS and/or trouble tolerating hot weather. I don’t have a diagnosis ( no Doctor knows whats wrong with me) but hot weather makes me very very ill . I found these Ice Rider wraps made for people now and wanted to know if anyone has tried them. I have tried cooling vests but they don’t seem cold enough for me and get warm quickly. I trail ride so Ice rider says they last 2 hours but wanted to know if anyone has tried them yet?