Dead Good Undies (DGU) is an online retailer specializing in men's fashion underwear and swimwear, offering a wide range of styles from everyday designs to sexy and designer options like string, thongs, briefs, boxer briefs, and swimwear. They stock various brands, including Doreanse, Andrew Christian, and Manstore, with both limited edition and regular stock available. DGU also sells tops, long johns, and loungewear, catering to a large international following, particularly in the USA, Canada, and Australia.