UnderWarmer
Stay warm. All day.
No batteries. No charging.
air-activated bodywarmer
The air-activated heat packs create the warmth. The compression-fitted shirt brings it all together. It's what makes UnderWarmer a wearable warming system.
Where will you wear your UnderWarmer?
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Football Games
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Tailgating
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Hunting
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Fishing
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Sidelines
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Golf
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Skiing
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Festivals
The UnderWarmer®Air-Activated Bodywarmer
Free shipping + Free returnsOn orders of $25 or more.
Air Activated And Ready in Minutes
Ready at a moment’s notice with zero prep. You’ll feel the warmth in minutes (up to 100°F/38°C).
Warm Without The Bulk
A comfortable, lightweight layer that’s disguised right under your clothes. Avoid the bulk and stay fashionable.
Perfect For Cold Weather Activities
It’s the difference between being comfortable and miserable. And it’s a small price to pay to stay warm. All day.
Great Gift For Football Fans
Give your tailgating spouse and buddies (or yourself!) a way to enjoy cold-weather football games AND stay warm.