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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
bringing your core temperature down from the inside out
targeted cooling
Works in both humid and dry heat for reliable performance at work
Cooling Packs: Do not machine wash
Extra SlimCool Cooling Packs Number of Packs:6 bringing your core temperature downRefresh your UnderCool 3 with a new set of ThermApparel SlimCool cooling packs designed for comfort, discretion, and all day wear. These lightweight PCM SlimCool cooling packs freeze and melt at 70F (21C). Think of it like a heat exchanger: the packs pull heat out of the blood flowing through vessels near your skin, and your body circulates that cooled blood back through your entire system, bringing your core temperature down from the inside out. They
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