The NEW Duluth Trading Buck Naked Performance Briefs in Size Large (36-38) in Black is a solid, everyday underwear designed for men. Made with 93% nylon and 7% spandex, these breathable and stretchy briefs are machine washable for easy care. With a classic style and comfortable fit, the Duluth Trading Company's Buck Naked performance briefs are perfect for all seasons and feature a pack of 1.