Nope! Most people forget they have their ThermApparel UnderCool Cooling Vest on. It’s made to conform, bend, and move with your body with its slim, low-profile design, lightweight 4-way stretch fabric, and flexible Cooling Packs. With many sizes to choose from, we can guarantee the most comfortable fit possible. And if it doesn’t fit right, give us a call at 855-232-7233 and we will set up an exchange for a different size.

How to get the correct fit for UnderCool 3.0

How to get the correct fit for UnderCool 2.0

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.

Is it uncomfortable?