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
Pointe shoe although the box is softer and the wings (sides of the toe box) are typically not as deep as those found on pointe shoes. Demi-pointe shoes are secured to the feet with ribbons and elastic band in identical fashion to pointe shoes. Unlike pointe shoes, however, demi-pointe shoes have no shank and, as a result, they do not provide the support necessary for proper pointe work. Demi-pointe shoes are most often used to train dancers who are new to pointe technique. They serve to acclimate dancers to the feel of wearing pointe shoes and to strengthen the ankles and feet