CoolSleeve
FREE SHIPPING & 60 DAY NO HASSLE RETURNS
The ThermApparel CoolSleeve offers cooling relief on hot days or during activity. Lightweight and flexible, it stays secure during movement and weighs as little as your smartwatch. Quick-recharging cooling packs last up to 1 hour, making it ideal for outdoor work, sports, or managing heat sensitivity with ease.
- DO MORE OF WHAT YOU LOVE: 30-60 minutes of cooling time for your favorite activities.
- KEEP COOL NO MATTER WHAT: Our PCM cooling packs work in humid & dry heat.
- EASY TO USE: Recharge your cooling packs in the fridge, freezer, or ice water in 20-60 minutes.
- COMFORTABLE FOR ALL BODY SHAPES: 4-way stretch fabrics & lightweight, articulated cooling packs provide a flexible, secure fit.
- SAY GOODBYE TO UGLY, BULKY VESTS: Our sleek design ensures discretion under clothes.
- STAY COOL & DRY: Don't worry about condensation or soaking, like Ice or Evaporative Vests.
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CoolSleeves are one size fits most. Please let us know if your purchase is too big or too small. We may add additional sizes in the future.
Reuse 1000’s of Times
Cooling Pack Care:
Washing Instructions:
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Non-Toxic Bio-Based Phase Change Material (PCM) |
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Freezes at 70F (21C) so its safe against the skin. Unlike Ice. |
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Works in humid & dry conditions |
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Cooling lasts 1-3 hours depending on cooling pack type & environmental conditions |
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Won’t condensate so you will stay dry |
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Recharges in 15-60 minutes |
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Can be used 1000’s of times for around 3 years |
What clients say
Why We're Better
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Evaporative Cooling
- Doesn't work in humidity
- Cools your skin, NOT your core directly
- Lightweight & Flexible
- Must be wet
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Our PCM Cooling System
- Works in any climate
- Cools your core body temp
- Lightweight & flexible
- Dry conformal cooling
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Gel & Ice Cooling
- Works in any climate
- Too cold for direct skin contact
- Heavy & rigid
- Wet from condensation