Men's thermal underwear 4fskin – a second skin for active people

4f men's thermal underwear is a lightweight and functional base layer, designed for activity in cold conditions. Thanks to 4fskin technology, it adapts to the body, creating a second-skin effect and supporting natural thermoregulation.

Quick-drying fibers effectively wick away moisture, keeping you feeling fresh and comfortable even during intense activity. The seamless construction minimizes the risk of chafing and irritation, ensuring all-day comfort. It's an excellent first layer under ski or trekking gear .

The slim fit ensures complete freedom of movement and comfort of use, regardless of the intensity of activity.

Men's 4f thermal shirt – features:

• 4fskin technology – second-skin effect and body-hugging fit
• Quick-drying finish – effective moisture wicking
• Seamless construction – less risk of abrasions
• First layer – perfect under jackets and outdoor clothing
• Slim cut – fits close to the body, ensuring comfort
• Composition : 58% polyamide, 37% polyester, 5% elastane

Combine with other products

Create a complete outfit by selecting products from the categories of men's sweatshirts , men's pants , and men's jackets and vests . See also other products with 4fskin technology.