XXL has joined the ThermApparel line. It's XXCool. Same slim, lightweight, comfortable and invisible design as our other vests with the added bonus of 2 additional cooling packs for a total of 6 per vest. ...very cool!

XXL comes in your choice of Black or White and your choice of cooling packs.

SlimCool Cooling Packs for 1-2 hours of oh-so-sweet cooling.
XXL Vest with SlimCool Packs weighs 2lbs 4 oz

ExtendedCool Cooling Packs for 2-3 hours of oh-so-sweet cooling.
XXL Vest with ExtendedCool Cooling Packs weighs 2lbs 13oz

Can't decide which Cooling Pack to go with? Shop the Festival Bundle or Adventure Bundle and get 1 set of each. 

Festival Bundle 1 vest and 2 sets of cooling packs - your choice black or white


Adventure Bundle 2 vests and 2 sets of cooling packs - your choice of 2 white vests, 2 black vests or 1 of each. 

XXL fits a natural waist of 55"-60".
Watch this video for tips on how to get your correct measurement.


ThermApparel empowers people to take back control of their lives. Our mission is to provide our customers with cooling products that embody dignity and comfort while safely mitigating their risk from heat. We utilize cutting-edge science that improves the quality of our customer's lives allowing them to be happier and healthier. It's our vision to get people back to life’s small pleasures like backyard BBQs, graduations, sports, and hobbies. All the things that make life great, because Now You Can.

ThermApparel is a small business making big waves in the heat sensitivity world by designing the first lightweight, comfortable, and invisible cooling vest, UnderCool. Check us out online, on our blog, or on FacebookTwitter, PinterestLinkedIn and Instagram.

Please let us know if you have any other questions or ideas in the comments below, we will follow up. You can always reach us via: Live Chat - www.thermapparel.com  |  Email - contact.us@thermapparel.com  | Phone - 855-232-7233 |  Address: ThermApparel LLC. 40 Franklin St. 4th Floor, Rochester, NY 14620.

It's not about feeling cold. It's about feeling good.