Men's 4fskin thermal underwear – the first layer like a second skin

Men's 4f thermal leggings are a reliable base for layered outfits, providing warmth, freedom of movement and comfort during winter activities. Thanks to 4fskin technology, they fit the body like a second skin, ensuring comfort even during intense exercise.

The seamless construction minimises the risk of chafing and irritation, while the quick-drying finish helps maintain a dry feeling for longer. Ventilation zones support air circulation, improving thermal comfort during training or outdoor activities. The high-rise waist and full-length legs provide protection from the cold in key areas.

The fitted slim fit follows the shape of the body without restricting movement. The leggings are perfect under a ski jacket or outdoor clothing.

Men's seamless thermal leggings by 4f – features:

• 4fskin technology – fits the body like a second skin
• Quick-drying finish – supports moisture wicking
• Seamless construction – minimises the risk of chafing
• Ventilation zones – enhance thermal comfort
• First layer – ideal under ski and outdoor clothing
• Slim fit – follows the shape of the body and does not restrict movement
• High-rise waist – improved fit and waist protection
• Full-length legs – additional thermal insulation
• Composition: 58% polyamide, 37% polyester, 5% elastane

Combine with other products

Make the most of the set by choosing products from the categories men's sweatshirts, men's trousers and men's jackets and gilets. Also explore other products featuring 4fskin technology.