Submission wrestling (also known as submission fighting, submission grappling, sport grappling, or simply as No-Gi) or Combat wrestling (in Japan), is a formula of competition and a general term describing the aspect of martial arts and combat sports that focus on clinch and ground fighting with the aim of obtaining asubmission using submission holds. The term "submission wrestling" usually refers only to the form of competition and training that does not use a "jacket", "gi," or "combat kimono," often worn with belts that establish rank by color.
The sport of submission wrestling brings together techniques from Folk Wrestling (Catch-as-catch-can), Luta Livre Esportiva, Judo, Freestyle Wrestling, Brazilian Jiu-Jitsu, and Sambo. Submission fighting as an element of a larger sport setting is very common in mixed martial arts, Pankration, catch wrestling and others. Submission wrestlers or grapplers usually wear shorts, skin-sticky clothing such as Rash guards, speedos and mixed short clothes so they do not rip off in combat. They are also known for using submission techniques normally banned in other arts or competitions such as heel hooks, toe holds, wrist and finger locks.