The ThermApparel Difference

We worked hard to make sure our vest is a perfect fit every time!

A display of UnderCool cooling vest's key features, including adjustable straps, velcro fastening, breathable and wicking fabric, and it's all machine washable. The cooling packs are safe on skin, biodegradable, non-toxic, and FDA approved for cooling garments! The UnderCool cooling vest fits all sizes, can be worn under clothes, weighs less than 2 pounds, has 4 way stretch, and provides cooling relief for up to 2 hours!

3 easy ways to stay cool