MS Awareness Month Sale

Buy UnderCool 3.0 Now. 

Save $25.

Improved shoulder straps, more breathable mesh, updated sizing.

Built to keep you cool when the heat is on. UnderCool's low profile and high performance lets you go the distance and look cool doing it.


Undercool 3.0


$199.99 $174.99

everything you need to get started

Festival 3.0 Bundles


$269.99 $244.99

extend your cooling time

Adventure 3.0 Bundles


$359.99 $334.99

chose both colors & skip laundry day




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.