Proton 2.0 Baselayer Shirt Women's - Ice Blue Size:LG and a single heat zone

and a single heat zone under the toes for subtle

Designed for workers who can't afford to lose dexterity to the cold

Perfect for construction sites

Built for warmth without the bulk

while USB-C charging offers convenient recharging from virtually anywhere

Proton 2.0 Baselayer Shirt Women's - Ice Blue Size:LG and a single heat zoneStylish warmth from base layer to outer layer. The Proton Heated Baselayer Shirt features a midweight printed knit design with a soft lining, flat stitching, and a 1 4 zip for easy ventilation. In seam thumbholes add a secure fit, while 3 heat zones deliver consistent core warmth. Whether layered under your winter gear or worn on its own, its the perfect blend of comfort and performance.