Finntrail Thermo-S Black Thermal Underwear

A cold-weather thermal base-layer set that helps regulate body temperature and move moisture away from the skin during active outdoor use.

Key features

• Moisture-wicking micro-polyester blend
• Ergonomic stretch construction for unrestricted movement
• Flat seams reduce rubbing and improve next-to-skin comfort
• Designed for use beneath fishing and waterproof outerwear
• Manufacturer temperature guidance: -25°C to +10°C

Finntrail article: 6304
Colour: Black

Finntrail products are covered by a two-year manufacturer’s warranty against defects in materials or workmanship. If a qualifying manufacturing defect is confirmed within 30 days of the original purchase date, the product will be replaced at no cost.