A WEARABLE HEATER FOR YOUR CORE
The UnderWarmer is a lightweight, single-use compression base layer with eight large heat packs built right in, four on the front and four on the back. Brothers Paul and Bryan Schaefer from Missouri created it as an affordable alternative to bulky layers and pricey battery-heated gear.
How it works
Just open the package and put it on. The heat packs are air-activated, so there are no batteries and nothing to charge, and you’ll start to feel the warmth within minutes. Keeping your core warm helps keep your hands and feet from getting cold in the first place.
Features:
8 built-in heat zones, front and back
Up to 12 hours of heat, reaching over 100°F
Snug compression fit holds the warmth against your body
Soft, stretchy and unisex, worn under your regular clothes
Short on time? Seal it in an airtight bag to pause the heat and use it again later
Great for football games, hunting, ice fishing, skiing, outdoor work and winter camping. Available in S, M, L and XL for $14.99 each.
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