You will need to understand that Karate Gis or Tae Kwon Do Gis are particular to that particular sport. In Karate or Tae Kwon Do as an example, your competition won't catch or pull in your gi so there may be no authentic requirement on reinforcing them. These Gis are commonly flimsy and incredibly thin as the sport of Karate or Tae Kwon Do usually needs a lot of fast actions with their strikes.