I was wondering what people here thought of wearing a GI for practice. I personally think you should only be forced to wear something if it is for extra preformance or safety. For example, a mouthguard should be mandatory for sparring. What I dont understand is how a GI helps with anything as opposed to shorts and a T-shirt. To my knowledge the GI is just a sport adapted kimono, and I can see why a heavyweight GI might be useful for something like Judo or BJJ where there is lots of grappling, or indeed a Karate class with lots of grappling where lightweight clothing might rip, but just wearing it for the sake of tradition seems strange to me.