Cotton material, thick and warm Stretch & soft touch long-sleeved innerwear, set of 2 [Size] L [Color] [Material] Black: 100% cotton / Gray: 65% polyurethane, 35% cotton Comfortable innerwear with the gentle touch of cotton These long-sleeved, thick-fabric crew neck shirts are made of cotton, allowing you to spend the day comfortably. Thick, warm material with a smooth feel. Excellent elasticity, so it fits perfectly with any movement. The simple design allows women to wear it as a T-shirt and stay warm. #YurinMen's #YurinWomen's #LongSleeveInnerwear #ThermalInnerwear #HeatGenerating #Men's #Warm #Cotton #CottonBlend #Soft #Underwear #Thermal #ColdProtection #Warm #Warm #ColdWeatherProtection #Autumn #Winter #Gentlemen #Men's #ThickFabric #SoftTouch