HOW DOES IT WORK? It’s Air-Activated. So it never needs a charge! When ready to use, simply remove from its packaging and put it on. The 8 heat packs are built right into the disposable shirt. No need to “shake” or “break” them. Feel the heat in about 10 minutes. Up to100°F/38°C
COMPRESSION FITTED: The UnderWarmer is made of a soft, lightweight compression material. The compression fit will keep the heat elements tight against your body, delivering over 12 hours of heat where you need it the most. Safe to wear directly against your skin.
HOW MANY TIMES CAN I USE THE UNDERWARMER? Wear it once for 12 hours, or get multiple, shorter uses! Here’s a tip! By resealing The UnderWarmer in your own ziplock /air-tight bag, it can be used again. Understand that after12 total hours of producing heat, the packs will harden and The UnderWarmer is disposable.
PERFECT FOR COLD WEATHER: You always thought that you had to choose between your favorite winter activity and staying warm. But no longer. Whether you're deer hunting, ice fishing, hiking or camping in the cold outdoors, the UnderWarmer heated shirt will make it a wonderfully warm experience and your must have hunting accessory.
GREAT FOR FOOTBALL FANS: Gift your tailgating spouses and buddies (or yourself!) with a way to enjoy cold weather football games AND stay warm for the whole day.
You’re now ready for the cold at a moment’s notice. It’s the best way to stay warm with zero prep - no charging needed.