Gi (Kimono): JJIF-approved white gi for Gi category; colored belt + red/blue sash for distinguishing competitors; No-Gi: rashguard + shorts; rashguard color (red/blue) for competitor distinction; Mouthguard recommended; protective cup permitted (men)
Why people argue about this
People often assume that since protective cups are permitted in No-Gi Jiu-Jitsu under JJIF's rules, they can be worn at will during training sessions without considering potential injuries or equipment malfunctions. However, the actual rule states these must be used with caution and only by men, leading to misunderstandings about their proper use and necessity.