You might have the wrong size. Sometimes if the vest is too large, you won't get optimal cooling. If you think your vest is too large, give us a call so we can set up a free exchange (855-232-7233). 

Questions to ask yourself.

  • Does the Vest Garment feel snug like it's hugging you?
  • Do the Cooling Packs sit firmly on your lower back?
  • Is there complete contact with no gaps between the Vest Garment and your back? The Cooling Packs need to make contact with your skin and not an undergarment for optimal cooling.
  • One way to check is to sit down on the couch with your ThermApparel UnderCool Cooling Vest on. 
    • Is there a big difference in the cooling sensation? 
    • Can you feel more of the Cooling Packs on your back? 
    • If you answered yes, you most likely need a smaller size

Contact us to set up a free exchange (855-232-7233).

Watch Julia explain how to do an exchange or return.

Questions about our vests or shipping? Reach out to the ThermApparel team toll-free at 855-232-7233, write to us through our website’s contact form or chat with us via live chat. We always respond because, otherwise, that wouldn't be cool.