What is Gi in BJJ?

The gi (also called kimono) is the traditional BJJ uniform, adapted from the Japanese judo gi. It consists of a heavy cotton jacket, reinforced pants, and a belt indicating rank. The gi allows for numerous grips (collar, sleeve, lapel) that create unique techniques not possible in no-gi. BJJ gis are typically heavier than judo gis to withstand the grip fighting. Colors are usually white, blue, or black, though competition rules vary.