This warm thermal underwear is made of synthetic material, ensuring durability and easy care. Thanks to the addition of 10% elastane, the material is stretchy and fits comfortably. This men's thermal shirt with 4FWarm technology ensures thermal comfort and helps maintain a constant body temperature. It features a stand-up collar with a zipper closure and a zipper lock. Raglan sleeves allow for unrestricted movement. size range: S-3XL cut: regular, which comfortably fits the figure standard cut reaching to the hips made of synthetic material that ensures durability and is easy to care for stretchy material thanks to the addition of elastane (10%) uniform colors that match many styles knit fabric with a brushed interior, suitable as a second layer stand-up collar with zipper and zipper lock raglan sleeves 4FWarm technology helps maintain a constant body temperature Main material: Polyester 90%, Elastane 10%