Sievi Alaska Thermo BTH XL+ S3 is a winter safety boot

Sievi Alaska Thermo BTH XL+ S3 Winter Safety Footwear

Heated winter safety footwear for demanding outdoor work and cold environments.

Product information

• Product model: Sievi Alaska Thermo BTH XL+ S3
• Product code: 48-52421-373-0PM
• Product type: Heated winter safety footwear
• Toe cap: Aluminium, 200 J impact resistance and 15,000 N compression resistance
• Puncture protection: Steel midsole, 1,100 N penetration resistance
• Safety classification: S3 CI FO HRO SC SR
• Standard: EN ISO 20345:2022
• Heating system: Integrated Therm-ic Bluetooth® system
• Heating controls: Temperature, heating level and battery status can be managed through the Therm-ic mobile application
• Battery operating time: Approximately 8–18 hours depending on the selected heating level
• Upper material: Water-repellent PU-coated leather and split leather
• Lining: Sheep wool lining
• Thermal insulation: PrimaLoft®
• Sole material: Dual-layer PU/rubber, Sievi TractionPro®
• Midsole: Sievi FlexStep® polyurethane that retains flexibility in freezing conditions
• Outsole: Wear-resistant TractionPro rubber that remains flexible in cold conditions
• Slip resistance: SR, tested on a ceramic tile surface with glycerol
• Cold insulation: CI, sole construction insulated against cold from the ground
• Heat resistance: HRO, outsole withstands contact heat of 300 °C for 60 seconds under the standard test
• Oil resistance: FO, outsole resistant to fuel oil under the standard test
• Scuff-cap abrasion resistance: SC, toe protection tested for abrasion resistance in accordance with the standard
• Antistatic properties: Yes, electrical resistance of 100 kO–1,000 MO
• Water resistance: The upper is water-repellent; the complete footwear is not classified as WR waterproof
• Fit: XL+, wider than the standard fit with additional room for the foot and toes
• Sizes: 39–47
• Recommended applications: Outdoor work in cold environments, construction, maintenance, property services, warehousing and logistics
• Limitations: Not electrically insulating. Chemical resistance, chainsaw protection and waterproofing of the complete footwear have not been stated.
• Manufacturer information and technical documents: Sievi – Alaska Thermo BTH XL+ S3
• EU declaration of conformity: Sievi Alaska Thermo BTH XL+ S3