You've never cooled like this before...
Our Phase change material is...
Our specialized slim design is made to conform to your body and provide maximum cooling relief without all the extra weight and bulk!
Our packs provide cooling relief for up to four hours! With our industrial grade packaging you can refreeze and reuse them for up to 20 years!
Our PCM is non-toxic, biodegradable, and FDA approved for use in cooling garments! No grease, no stains, and no worries!
Easy as 1, 2, 3...
Before going out, store your cooling packs in a cold place for about one hour.
Slide your frozen cooling packs into the hidden pockets on the back of your UnderCool.
Put on your UnderCool and experience cooling relief like never before!
Want more Cooling Packs For Your UnderCool?
Hey we get it! Sometimes 2 hours just isn't enough to cover that company barbecue, that football game, or your family's long-anticipated trip to Disneyland.
But don't fret, we got you!
Sometimes it's nice to have some extra cooling packs on hand to switch out on those long hot days. We made extra sets of our special cooling packs available on our shop!
If you need more packs you can always buy more, remember to always stay cool!