About this itemStay warm: Made from a non-irritating blend of polyester, this thermal underwear set is comfortable next to the skin, keeping you warm and protected from cold weather, whether you're indoors or out.Easy to layer: The design of this men's thermal underwear makes layering a breeze. The fitted yet loose cut allows for easy layering, while the thermal inner layer provides cozy warmth without being too bulky.Durable: This men's underwear combines the comfort of cotton with the durability of polyester to create a garment that can withstand countless cold moments. The inner thermal underwear can be easily cleaned in the machine wash without shrinking or fading.Comfortable fit: We offer thermal pants for men in a variety of sizes. The thermal pants have an elastic waistband for extra comfort and taper to the waist, making them perfect for wearing with winter boots.