Adidas has opened its first Stella McCartney flagship store, after working with the British designer for eight years. It is located next to the main Stella McCartney store and her children's store, which opened in Brompton Cross, London a few weeks ago. McCartney has designed the uniforms of the British Olympic team. Separately, a franchised Adidas Originals store of 50 square meters is opening today in a prominent location of Milan, on Piazza San Babila.