COS was created by H&M Group in 2007 and opened its first store in London that year. The brand has since expanded internationally while keeping a distinct identity built around contemporary design, wardrobe staples and a more architectural, pared-back aesthetic than the group's namesake H&M brand.
Collections span womenswear, menswear, childrenswear and accessories, with regional differences in assortment and availability. COS is a brand within H&M Group rather than a separate independent parent company; current company information for the online stores identifies H&M Hennes & Mauritz group entities as the contracting business.
Customer service is localized by market. The United States, United Kingdom, Japan and other regions publish different phone numbers, email addresses, hours, payment methods and return rules, so support information should always be tied to the storefront where the purchase was made.
