Sievi Alaska Thermo BTH XL+ safety boot

The Therm-ic heating system integrated into the footwear, equipped with Bluetooth® functionality, provides warmth for an entire workday on a single charge. You can adjust the temperature, check the battery status, and select different heat settings directly through the Therm-ic app on your smartphone. The wool lining, TractionPro® grip sole, roomy XL fit, and PrimaLoft® thermal insulation make Alaska Thermo a superior winter boot.