In the first step, the present study selected 1.3 cm for the size interval lengths of HL and HC, referring to the corresponding anthropometric data and the survey result of size interval lengths used by glove manufacturing companies. This study used an equal value for both the size interval lengths of HL and HC because the values of the dispersion measures (such as standard deviation and 1–99 percentile range) of HL and HC are similar (difference < 0.2 cm for SD and 0.6 cm for 1–99 percentile range) with each other as displayed in Table 5. Furthermore, since glove manufacturing companies have often used an interval length of 0.6–2.5 cm for HL and HC as shown in Table 1, the present study selected their intermediate value of 1.3 cm. Note that optimal size interval lengths of HL and HC can be determined by compromising the trade-offs between properties of materials, fit of gloves, and
manufacturing costs.