Businesses in the large clothing category sell garments designed for people who need sizes beyond the range commonly stocked by standard clothing retailers. They may specialise in womenswear, menswear or clothing for all adults, with ranges that include everyday tops, shirts, trousers, jeans, dresses, skirts, knitwear, coats and jackets. Some retailers also stock underwear, nightwear, swimwear, sportswear and accessories in extended sizes. Customers can expect a choice of styles, cuts and fabrics for work, leisure and formal occasions. Shops may offer fitting rooms and advice on sizing, fit and garment care, while some provide alterations or help with ordering items that are not available in store. Size ranges, measurements and stock vary between retailers, so clothing may be labelled by standard size, measurements or a retailer's own sizing system. These businesses focus on making clothing available in larger fits, rather than providing medical or therapeutic garments.