Shoe size USSR used the European (Paris point) system, but the Mondopoint metric system was introduced in 1980s by GOST 24382-80 "Sizes of Sport Shoes" and GOST 11373-88 "Shoe Sizes", and lately by GOST R 58149-2018. Foot lengths are aligned to 5 mm and 7.5 mm intervals. Standard metric foot sizes can be converted to the nearest Paris point ( cm) sizes using approximate conversion tables; shoes can be marked with both foot length in mm, as for Pointe ballet shoe sizes, and/or last length in European Paris point sizes (although such converted 'Stichmass' sizes typically come ½ to 1 size smaller
Air Force (shoe) retailers used to be prohibited by Nike who had restricted supply of the sneaker. Nike now allows retailers to offer the shoe for sale online. As a performance shoe, the AF1 is still used for street play as well as for professional play. NBA players Jerry Stackhouse (who now wears Adidas) and Rasheed Wallace have worn AF1s on court. Nike Air Force 1s were originally considered the favored shoe of inner-city youth, especially in Harlem, New York; hence the nickname "Uptowns". Rapper Nelly and his group, St. Lunatics, collaborated on a 2002 single entitled "Air Force Ones" about the shoes.