Sievi Alaska Thermo BTH XL+ S3 is a winter safety boot
- Product Code: 52421
- Product features: High-traction rubber outsole
- SEASON: WINTER
Sievi Alaska Thermo BTH XL+ S3 is a winter safety boot designed for cold and damp working conditions, equipped with a Thermic Bluetooth® heating system. Heating control and battery status monitoring are managed via the Thermic smartphone application.
General Information
Purpose: S3-rated winter safety boot for cold working environments.
Main benefit: smartphone-controlled heating system combined with a wide size range and XL+ wide fit.
Technical Specifications
- FASTENING: lace fastening
- CERTIFICATION: S3
- WATER RESISTANCE: according to S3 requirements
- TOE CAP: according to S3 requirements
- PUNCTURE RESISTANCE: according to S3 requirements
- UPPER MATERIAL: not specified
- OUTSOLE: not specified
- LINING: not specified
- HEATING SYSTEM: Thermic Bluetooth®
- CONTROL: Thermic smartphone application
- FUNCTIONS: temperature adjustment, battery status monitoring, heating modes
- LAST: XL+
- FIT: wide
- SIZE RANGE: 36–48
Benefits Compared to Similar Products
- Heating controlled directly via smartphone.
- Lace fastening with no zipper.
- XL+ wide fit improves comfort for wider feet.
- Wide size range from 36 to 48.
Intended Use
Suitable for outdoor and cold-weather work requiring S3-level foot protection and adjustable heating.
Applicable for personnel service workers, seasonal employees and temporary staff.
Not suitable for workplaces where smartphone use is restricted or heating functionality is not required.
Product Name
Sievi Alaska Thermo BTH XL+ S3 Winter Safety Boot
Q & A
Does the boot have a zipper?
No. The boot uses lace fastening.
What sizes are available?
The size range is 36–48.
How is the heating system controlled?
Via Thermic Bluetooth® using the Thermic smartphone application.
What is the warranty?
Warranty is according to the manufacturer’s and retailer’s terms.
Delivery Information
- DELIVERY METHODS: selected during checkout
- DELIVERY TIME: from 1 business day on order
- STORE AVAILABILITY: not specified
- RETURNS/EXCHANGES: no return or exchange rights
