Reebok International Limited is an American fitness footwear and clothing brand that is a part of Authentic Brands Group. It was established in England in 1958 as a companion company to an athletic shoe company called J.W. Foster and Sons. From 1958 until 1986, the brand featured the flag of the United Kingdom in its logo to signify the origins of the company. It was bought by Adidas in 2005, then sold to the United States-based Authentic Brands Group in 2021.