Shoe size characteristics of a system of shoe sizing to be known as Mondopoint" and ISO 3355:1975 "Shoe sizes - System of length grading (for use in the Mondopoint system)". ISO 9407:1991, "Shoe sizes—Mondopoint system of sizing and marking", is the current version of the standard. The Mondopoint system is based on average foot length and foot width for which the shoe is suitable, measured in millimetres. The length of the foot is measured as horizontal distance between the perpendiculars in contact with the end of the most prominent toe and the most prominent part of the heel. The width of the
Shoe size , Mexico, and European countries. Mondopoint system is also used by NATO and other military services. The standard is maintained by ISO Technical Committee 137 "Footwear sizing designations and marking systems"; as of 2018, a new revision is under development. In Japan, Taiwan and South Korea, the Mondopoint system is used as defined by national standard JIS S 5037:1998 and its counterparts CNS 4800-S1093:2000 and KS M 6681:2007. Foot length and girth (foot circumference) are taken into account. The foot length is indicated in centimetres; an increment of 5 mm is used. The length is followed by designators for girth