Võ phục not necessarily adopted by all practitioners, as evidenced throughout 1973-1990 when many practitioners under a separate development of Vovinam, the "Viet Vo Dao Federation," wore black uniforms. By 1990, however, after further meetings between councils, indigo had been adopted by the majority of Vovinam practitioners in and outside of Vietnam. Deep blue/indigo (Vietnamese: Lam) is now the internationally accepted color of Vo Phuc for Vietnamese martial arts. The "võ phục" of Vovinam are very similar, if not nearly identical, to the "keikogi" of Japanese martial arts. Both top and bottom of the uniform are constructed in much the same way
Vovinam martial arts easier, e.g. in public performances. A person who wears a yellow belt with one or more stripes is considered an instructor. Following in a longer period of time, respectively 3 red stripes are added to the yellow belt. This corresponds to the 1st, 2nd, respectively 3rd degree blackbelt (Đẳng). The exam following the 3rd red stripe is the master's exam. Passing the exam successfully assigns the right to wear a red belt with a circulating yellow border (4th degree blackbelt). <nowiki> </nowiki>Red stands for the blood and the intensive flame. The student has internalized Vovinam (Việt Võ Đạo)