ISO/TC 133 - Clothing sizing systems - size designation, size measurement methods and digital fittings

This document focuses on the method of quantifying the differences in body dimensions and visualizing shape differences between the human body and a virtual human body model. This document provides a performance evaluation protocol for virtual human body representation systems, which create virtual human body (including virtual fit mannequin) models based on 3D body scan data and/or body dimensions data of a human body. The required accuracy of a virtual human body depends on the purpose and use of the digital fitting system.

This document specifies a method for describing the functions and the method for evaluating the performance of the virtual garment pattern cutting and clothing simulation modules of digital fitting systems. This document is applicable to fashion designers and pattern technologists (makers) for generating virtual garment patterns, and testing them on a virtual fit mannequin (fit form).

This document describes the principles of the establishment of tables for body measurements, defines the categories of tables (related to intervals), and lists the population groups (infants, girls, boys, children, women, men) and sub-groups to be used for developing ready-to-wear garments. The body measurement tables and intervals are mainly used by the clothing sector to make the development of well-fitting products easier and more accurate. The described methodology is mainly based on the application of statistical analysis, using body dimension data. The statistical level has deliberately been kept to a low level in order for the content to be made readily comprehensible to the widest possible readership. This methodology is applicable to various sets of body dimensions. It can be useful to determine intervals for the size designation as described in ISO 8559-2. Values in the tables in this document are examples. Garment dimensions are not included in this document. It is necessary to use a general approach providing inbuilt flexibility, in order to keep the whole sizing system capable of adapting to changes (e.g. demographic criteria), because body shape and proportions for any one targeted population group differ significantly. NOTE ISO 15535 can be convenient for recording and organizing the population data.

ISO 18890:2018 defines the main measurement points and describes the method used to measure garment dimensions. Additional measurement points can be determined between interested parties.

ISO 5971:2017 establishes a system for designating the sizes of tights. The system is based on three criteria: - identification of dimensions; - description of the methods of determining size designations from survey data; and - indication of size designations for garment labelling. Examples of size designations are given in Annex B.

ISO 8559-1:2017 provides a description of anthropometric measurements that can be used as a basis for the creation of physical and digital anthropometric databases. The list of measurements specified in this document is intended to serve as a guide for practitioners in the field of clothing who are required to apply their knowledge to select population market segments and to create size and shape profiles for the development of all garment types and their equivalent fit mannequins. The list provides a guide for how to take anthropometric measurements, as well as give information to clothing product development teams and fit mannequin manufacturers on the principles of measurement and their underlying anatomical and anthropometrical bases. Annex A describes the use of the pictogram (standardized and modified) based on the selection of most usual body dimensions used for clothing size designation. ISO 8559-1:2017 is intended to be used in conjunction with national, regional or international regulations or agreements to ensure harmony in defining population groups and to allow comparison of anthropometric data sets.

ISO 8559-2:2017 specifies primary and secondary dimensions for specified types of garments to be used in combination with ISO 8559‑1 (anthropometric definitions for body measurement). The primary aim of this document is to establish a size designation system that can be used by manufacturers and retailers to indicate to consumers (in a simple, direct and meaningful manner) the body dimensions of the person that the garment is intended to fit. Provided that the size of the person's body (as indicated by the specified dimensions) has been determined in accordance with ISO 8559‑1, this designation system will facilitate the choice of garments that fit. This information can be indicated by labelling, etc. The size designation system is based on body measurements, not garment measurements. The choice of garment measurements is normally determined by the designer and the manufacturers who make appropriate allowances to accommodate the type and position of wear, style, cut and fashion elements of the garment.

ISO 18825-1:2016 covers vocabulary and terminology used for the virtual human body in the virtual garment system used as a main tool in various fields of clothing application. It is applicable to all stages of online clothing communication and business, including design, manufacture, order, sales, distribution and customer management.

ISO 18825-2:2016 defines the terms used to describe the virtual human body which is used in virtual garment systems. Specifically, virtual body landmarks and virtual body dimensions are described. It mainly deals with vocabulary and terminology of essential virtual body dimensions of the virtual torso, arm, leg, head, face, hands and bones and joints of virtual human body. Since there are many body landmarks on the head and hand, landmarks on these parts are defined separately from those on other parts of the body. It is intended for developers of virtual garment systems. Although ISO 18825-2:2016 does not aim at users of virtual human body in online communication, the improved reliability of virtual human body will benefit them.

ISO 18831:2016 defines the attributes required to produce virtual garments, including virtual hats and virtual gloves using virtual garment software.

ISO 18133:2016 defines the terms that are commonly used for the digital fitting system. The digital fitting system includes virtual fabric, virtual fabric properties, virtual garment pattern, virtual garment pattern properties, virtual sewing line, virtual garment, and virtual garment simulation of a virtual garment on a virtual human body model for fit assessment.

In order to size mass-produced clothes, the body size of the intended wearer has to be defined and identified with the nearest size on a table of standard sizes. The processing of body measurement data as described in ISO/TR 10652 results in the grouping of body sizes. The sizing systems presented in annexes A to C are exemplary only. This Technical Report establishes a body sizing system to be used for compiling standard garment sizes for infants, men and boys and women and girls.

Cancels and replaces the clause 4, control dimensions, a) to e). Deletion of the parts b) and c) of figure 1 and of the parts b) and c) of figure 2 and insertion of the revised wording.

Defines the location and taking of body dimensions and applies to all items of clothing for men, women and children. The use of calipers and anthropometers is excluded.

Establishes a system of designating the sizes of pantyhose (including tights). Both the control dimensions on which the size designation system is based, and the method of indicating the size designation on a garment label, are laid down. Gives examples by means of figures.

Is intended as a reference document to be consulted in conjunction with the ISO-Standard for the size designation of clothes applicable to the garment under consideration. Defines body dimensions and describes their measurement.

Establishes a system of designating the sizes of the above mentioned garments that are classified as a) covering the upper body only, or b) covering the whole body, or c) covering the lower body only, and applies to civilian and uniform garments. Both the control dimensions on which the size designation system is based, and the method of indicating the size designation on a garment label, are laid down. Should be read in conjunction with ISO 3635.

Cancels and replaces the clause 4, control dimensions, a) to e). Deletion of the parts b) and c) of figure 1 and of the parts b) and c) of figure 2 and insertion of the revised wording.

The size designation system is based on body and not garment measurements. Both the control dimensions on which the size designation is based, and the method of indicating the size designation on a garment label, are laid down. Should be read in conjunction with ISO 3635

Establishes a system of designating the size of headwear based on body and not garment measurements. Specifies the control dimensions (headgirth), the size designation and the labelling.

Establishes a system of designating the sizes of garments (including knitwear and swimwear) that are classified as a) covering the upper or the whole body or b) covering the lower body only, and applies to civilian and uniform garments. Both the control dimensions on which the size designation system is based, and the method of indicating the size designation on a garment label, are laid down. Should be read in conjunction with ISO 3635.

Establishes a system of designating the sizes of garments (including knitwear and swimwear) that are classified as a) covering the upper or the whole body or b) covering the lower body only, and applies to civilian and uniform garments. Both the control dimensions on which the size designation system is based, and the method of indicating the size designation on a garment label, are laid down. Should be read in conjunction with ISO 3635.

Establishes a system of designating the sizes of infant's garments. Both the control dimensions on which the size designation system is based, and the method of indicating the size designation on a garment label, are laid down. Should be read in conjunction with ISO 3635.