Men's thermal sweatshirt 4F M103 navy blue 4FAW23USEAM103 31S The men's thermal sweatshirt 4F will allow you to fully enjoy the charms of winter and spend time actively on the slope. Technical knitwear with 4FSkin technology creates a flexible construction that perfectly adapts to the body, ensuring comfort and maximum freedom of movement. Quick-drying properties. Fitted, seamless cut. To be used as the first layer of clothing. Main material: 64% polyamide, 28% polyester, 8% elastane