The Sievi Alaska Thermo XL+ Safety Boot is the ultimate winter safety boot, built to keep your feet warm, dry, and protected in the harshest conditions. Featuring the Therm-ic Bluetooth® heat kit, you can enjoy all-day warmth on a single charge. Control the temperature, check battery status, and select heat settings directly from the Therm-ic smartphone app.

Crafted with a sheep wool lining and PrimaLoft® thermal insulation, these boots ensure warmth and comfort even in freezing environments. The TractionPro® friction sole provides outstanding grip on icy and slippery surfaces, while the extra wide XL fit offers additional space and comfort.

For protection, the Alaska Thermo is equipped with an aluminium toecap, a steel penetration-resistant midsole, and a double density PU/RU sole for durability and heat resistance up to 300°C.

Key Features:

Therm-ic Bluetooth® Heating System: All-day warmth, app-controlled
Sheep Wool Lining & PrimaLoft® Insulation: Maximum thermal comfort
Aluminium Toecap: Lightweight impact protection
Steel Penetration-Resistant Midsole: Protection against sharp hazards
Double Density PU/RU Sole with TractionPro®: Grip, durability, and heat resistance up to 300°C
Water-Repellent Upper: PU coated leather & split leather
Extra Wide XL Fit: More space and comfort for the wearer
Safety Standard: EN ISO 20345:2022 S3 CI FO HRO SC SR
Size Range: 39 – 47

Sievi Alaska Thermo XL+ Safety Boot – Heated Bluetooth Winter Work Boot