Businesses in the men's underwear category sell garments designed to be worn next to the skin beneath everyday clothing, sportswear or sleepwear. Typical products include briefs, trunks, boxer shorts, loose-fitting boxers and long underwear, in a range of fabrics such as cotton, modal, microfibre and thermal materials. Stock may include multipacks and individual items in different sizes, cuts, colours and patterns. Retailers may also offer undershirts, vests, base layers, long johns and specialist styles for sport or particular clothing needs. Some provide fitting or sizing guidance, while online and physical shops may offer delivery, returns or exchanges subject to their policies. The category covers general clothing shops, specialist underwear retailers and businesses supplying underwear through catalogues or online stores.