On official Winter events, all black belts and instructors are required to wear the official uniform as follows: black jacket with patch on the chest, grey pants, white shirt, official tie, black classic shoes, black belt with silver buckle. The official uniform is compulsory for official events such as seminars, congresses, conferences, master classes, meetings, workshops.
The patch to be stitched on the black jacket is intended to indicate both country and level of the black belt/instructor as follows:
