Men's 4F M100 Thermal Sweatshirt, Deep Black 4FWAW25UBRUM100 20S This men's 4F thermal sweatshirt will ensure you maintain optimal body temperature during all kinds of winter activities. Technical data: Main material: 78% polyester, 22% elastane Additional material: 100% polyester 4FWarm technology - supports thermal comfort even in low temperatures Quick-drying finish - helps keep you dry during activity A second layer of clothing works well as insulation under a ski jacket Hood with a balaclava function - protects the head and face without the need for additional accessories Raglan sleeves and cuffs with thumbholes - increase the range of arm movement, provide additional hand coverage and a better fit Flat seams - minimize the risk of abrasions and increase comfort Regular fit - comfortably fits the body without pressure