The 4F men's seamless thermal underwear (top) is designed as a base layer for skiing, snowboarding, and other winter activities. Its slim fit fits close to the body, while the standard hip length allows for comfortable wear under additional layers.

4FSkin technology supports a close-fitting material, creating a second-skin effect. The seamless construction helps reduce the risk of chafing during movement, while the quick-drying finish helps wick away moisture during activity.

Ventilation zones promote air circulation, and long raglan sleeves allow for freedom of movement. The round neckline fits well under layers of clothing, making this model suitable for both the slopes and winter walks or trekking .

The elastic, fastener-free design allows for a comfortable fit and allows the T-shirt to be worn next to the skin as a base layer. The material is 95% polyamide, 4% elastane, and 1% polyester.

KEY FEATURES

• men's 4F thermal underwear - top
• first layer of clothing
• 4FSkin technology
• seamless construction
• quick-drying finish
• ventilation zones
• slim fit
• standard hip length
• long raglan sleeves
• round neckline
• without fastening
• main material: 95% polyamide, 4% elastane, 1% polyester