Judogi

Judogi (柔道着 or 柔道衣), also called keikogi or dogi, is the formal Japanese name for the traditional uniform used for Judo practice and competition.

[1] A judogi comprises three parts that are usually cut from different fabrics: a very heavy jacket (uwagi), lighter canvas pants (shitabaki or zubon), and a cotton belt (obi).

Due to the nature of judo practice, they commonly have heavier stitching and double-layered knee patches to provide durability.

These rules define sleeve and pant length as well as the looseness of the fit; in competition, the referee can disqualify a competitor for wearing an ill-fitting judogi that may be used for advantage.

The thinner judogi are less durable, although some judoka (judo practitioners) may prefer them for long practices as they are less likely to foster overheating.

However, pants sold together with double-weave jackets will also tend to be heavier than normal due to stronger fabric or large reinforced sections.

Starting in the late nineties, some manufacturers made this overlapping part very wide, in effect doubling the fabric thickness for a large section of the back.