Undershirts from Nordic Heat ApS

Battery Heated underwear - Shirt, incl. battery/charger

Nordic Heats Base Layer with electric heating keeps you warm.
Comes complete with rechargeable battery and charger.
The 3 heating zones in the upper part are placed strategically - upper back, lower back and stomach, so the heat is transported throughout the body. Moisture wicking and breathable - 3 heat levels - High - medium - low.