Design Requirements for EN 17353:2020

5.1 Size designation
The size designation for garments shall be in accordance with the requirements of EN ISO13688:2013.5.2 Type A
5.2.1 General
Type A garments (including partial body protective clothing) shall in their design use at least the minimum amount of fluorescent material according to Table 3.
NOTE1 Protective clothing items are worn to cover one or more parts of the body, examples of partial body protection are sleeves, aprons, and chaps.
The areas shall be measured on the smallest garment size intended to be supplied, in each of the two height ranges specified in Table 3, with all fasteners adjusted to the smallest configuration possible and with the garment laying flat on a table.
Fluorescent material areas covered by any logos, lettering, labels etc, are not counted towards the total area.