Men's 4fskin thermal shirt – the first layer feels like a second skin. The 4f men's thermal t-shirt is a functional base layer that provides comfort and freedom of movement during winter activities. Thanks to 4fskin technology, the t-shirt fits the body like a second skin, ensuring comfort even during intense exertion. The seamless construction minimizes the risk of chafing and irritation, while the quick-drying finish wicks away moisture, keeping you feeling dry longer. Ventilation zones promote air circulation and increase thermal comfort. It's an excellent first layer under winter or outdoor clothing. The slim fit hugs the body and does not restrict movement, making the t-shirt ideal for both training and trekking on colder days.

Men's seamless 4f thermoactive shirt features:

• 4fskin technology – second skin effect and perfect fit
• Quick-drying finish – supports moisture wicking
• Seamless construction – minimizes the risk of abrasions
• Ventilation zones – improve thermal comfort
• First layer – perfect under ski and outdoor clothing
• Slim cut – fits close to the body and does not restrict movement

Composition: 58% polyamide, 37% polyester, 5% elastane.