They recharge quickly and provide dry
Great for heat sensitivity
do not machine wash
Check our Sizing Guide
bringing your core temperature down from the inside out and cooling you from head to toe
UnderCool 3 Costuming They recharge quickly and provideWhether you're managing heat sensitivity, MS, lupus, fibromyalgia, POTS, or menopause, or you're an actor, cosplayer, or performer who needs to stay cool under a costume, the UnderCool 3 was built for you. Lightweight, concealable, and worn discreetly under your clothes, it delivers 1 to 3 hours of dry, consistent cooling with no ice, no condensation, and no bulk. Trusted by thousands across the US for work, play, travel, and everything in between.