Shopping Cart [ 0 ] Nope! When worn under your clothing your ThermApparel UnderCool Cooling Vest is almost invisible. 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. It’s up to you to let people know if you are wearing an UnderCool Cooling Vest or test them to see if they notice.
