The NWT Tesla Men's Baselayer Base Layer Performance Long Underwear in 2XL is a yellow with black trim compression garment made of 87% polyester and 13% polyurethane. It is machine washable, making it easy to care for. This base layer long underwear is designed for all seasons, providing comfort and support during active wear. With the Tesla brand and colorful theme, this underwear is perfect for men looking for high-quality, stylish, and functional long underwear.