martial arts uniform; dogi
Refers to the training uniform worn in martial arts such as judo, kendo, aikido, and karate. The term is widely understood in Japanese and international martial arts contexts.
Before judo practice, I change into my dogi.
I bought a new dogi, so I'm looking forward to the next training session.
Compound of 道 (どう, 'way' or 'path', referring to martial arts disciplines) and 着 (ぎ, 'clothing'). The reading ぎ for 着 is a common rendaku form.