4FWarm thermal underwear (top) men's 4F 4FRAW25UFLEM083-20S

A second layer that keeps you warm and doesn't restrict your movements. 4F men's insulated underwear has been designed as a functional second layer that will be perfect for winter activities – on the slopes, in the mountains, and for everyday use on colder days. 4FWarm technology supports thermal comfort by helping retain heat close to the body without overheating. This is ideal for wearing under a jacket or sweatshirt in demanding conditions. The insulated, brushed interior provides a soft, comfortable feel, enhancing comfort as a mid-layer. The stand-up collar with a zipper further protects the neck from cold and wind. Flat seams minimize the risk of chafing, and the regular, hip-length cut guarantees freedom of movement and a comfortable fit – even during intense activity. PRODUCT FEATURES 4FWarm technology insulated, brushed interior stand-up collar with zipper flat seams regular fit hip length purpose: second layer

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