About this product Super soft fabric: Men's thermal underwear set is made of high-quality moisture-wicking, breathable fabric blend of milk silk and polyester, which helps absorb sweat during physical activity and dries quickly, helping to keep you dry and comfortable. Excellent flexibility, suitable for various activities: Men's winter thermal tops and bottoms feature four-way stretch fabric, providing a slim fit and allowing freedom of movement at the gym, in the office, or at home. Flatlock seams enhance comfort and durability. Designed for outdoor sports: Men's long sleeve shirts and pants are ideal for cold weather and well-suited for outdoor activities such as skiing, hunting, camping, snowboarding, cycling, motorcycle riding, running, mountaineering, and traveling. They can also be worn as a base layer under outerwear or as comfortable loungewear at home. Comfortable and durable: Men's winter thermal clothing is soft, skin-friendly, and designed to retain warmth while minimizing heat loss. Reinforced ing ensures long-lasting wear. The close-fitting design offers a second-skin feel for excellent warmth and fit. Ideal gift for family and friends: Stay warm during cold winter months with this thoughtful and practical gift. Suitable for parents, husbands, and friends, this base layer set offers comfort and warmth, making it a great choice for gifting.