These are authentic Tokaido Japan Ultimate Karate Gi / Uniforms. When we first opened the store years ago, we did not realize there were so many variations and knock-offs of Tokaido karate gi. It was our first gi order in which a customer informed us that the Tokaido Arashi is not the gi. It's a strong canvas gi, but he authentic Tokaido gi are made from "ultimate cotton". This cotton is grown by Tokaido, and is known for it's comfort and strength. Indeed, we have many karate masters that contact us to replace the Tokaido gi that lasted 20 years. Want to know more about authentic Tokaido karate gi / uniforms. Read our blog post 5 ways to tell if your Tokaido Karate Gi is really from Japan.