Sievi Alaska Thermo BTH XL+ S3 (sizes 39-47)

The Sievi Alaska Thermo BTH XL+ S3 represents premium winter safety footwear engineered for demanding cold weather conditions. These innovative boots feature integrated Therm-ic heated insoles with Bluetooth connectivity, allowing workers to control temperature settings and monitor battery status through a smartphone application throughout the entire workday.

The Alaska Thermo Bluetooth boots combine advanced heating technology with superior insulation materials, including PrimaLoft thermal protection and natural sheep wool lining for exceptional warmth retention. The spacious XL fit accommodates thicker socks and provides enhanced comfort during extended wear periods.

Safety features include an aluminum toe cap and steel perforation-resistant midsole, meeting S3 safety standards for workplace protection. The TractionPro friction sole delivers reliable grip on slippery winter surfaces, while the durable PU-coated leather upper withstands harsh environmental conditions.

The Sievi Alaska Thermo BTH utilizes a double density PU/RU sole construction for optimal shock absorption and durability. Available in sizes 39 through 47, these heated safety boots provide comprehensive foot protection and climate control for professionals working in cold environments.

Toecap
Aluminium
Perforation Resistant Midsole
Steel
Upper material
PU coated leather
Sole material
Double density PU/RU
Lace length
200 cm