Uniforms come in different brands and different weights of material.
The heavier the material the longer it lasts. Most beginners feel uncomfortable in the heavyweight canvas, but many advanced people prefer it for look and durability. Experience has shown that most uniforms have a jacket which is too short. Many people buy a half size larger and have the pants and sleves tailored, cutting off about 2 inches. It makes it slightly more difficult to grab an opponent's uniform who has shorter sleves.