Enjoy your winter activities like never before! The UnderWarmer heated shirt is convenient, super comfortable and best of all - it works really well. The UnderWarmer was specifically designed to be affordable and convenient for the everyday guy or gal spending a long day in the cold. That’s why UnderWarmer has some very specific features, like instant air activation (just take it out of the package) and compression fit (so you can feel every bit of heat pressed against your upper body,). For just a few bucks, you have a portable, wearable radiator, ready to go the moment you are. Unlike hand and foot warmers, which only help extremities that have already gotten cold, the UnderWarmer PREVENTS those extremities from ever getting cold. How? By keeping your core warm - because a cold body core is the cause of icy extremities. Best of all, unlike all those bulky coats and layers you’ve tried, the UnderWarmer is extremely lightweight and won’t slow you down.You CAN stay warm for the entire day, even in negative digits. Just grab your UnderWarmer!
Unisex-Compression Fitted For Maximum Heat- Feel snug and gently stimulated The UnderWarmer is a soft, lightweight compression base-layer shirt. So it feels really, really good. But most importantly, that snug fit means the warmth stays right where you need it - near your skin.
12 Long Lasting Hours- No Batteries Required Unlike heated jackets that require batteries, the UnderWarmer requires no batteries and is ready to use when you are. Simply remove the UnderWarmer from its packaging. Upon opening, heat activation begins and will take approximately 30 minutes to reach its maximum temperature.
Use this size chart to correctly identify the right UnderWarmer for you.
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