Martial Arts Uniform emoji is used to represent a variety of Mixed Martial Arts, like Karate or Taekwondo. Many of these sports are similar, at least in the uniforms they require their students to wear. That is why the Martial Arts Unifrom is versatile as it can be used to represent many, if not all, of the different Martial Arts. It can be used with the 👊 Oncoming Fist emoji to show your interest in the sport, as many training exercises have you fist-punching the air. Follow it with a 😫 Tired Face emoji to express how worn out you are after practice. If you are talking about sports, use it but do say which Martial Arts you are talking about. (Source: Emojis.wiki, Fair use)