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 technique concerned with body alignment, placement of the feet, and the manner in which a dancer transitions to and from en pointe. A dancer is said to have "good" or "proper" technique when in conformance with the best practices of pointe technique, which in turn are generally referred to as "proper technique". En pointe dancers employ pointe technique to determine foot placement and body alignment. When exhibiting proper technique, a dancer's en pointe foot is placed so that the instep is fully stretched, with toes perpendicular to the floor, with the pointe shoe's platform (the flattened tip of the toe box)