Isami Karate Gi Mas Oyama


34 reviews
  • The authentic Isami Karate Gi worn by the legendary Masutatsu "Mas" Oyama, the founder of Kyokushin. 
  • This is a high performance Full Contact Karate Gi handcrafted in Japan in traditional ivory color (see full specs below).
  • You will be able to move freely and hear the gi snap when throwing fast strikes.

⭐⭐⭐⭐⭐ Jonathan M. from USA
"This gi is a piece of art. Incredible quality, better than I imagined. Sizing chart is quite exact and the gi looks like it was tailored for me. Quality of the fabric is impeccable. Very stiff cotton for the top which makes the gi feel like a warrior armor and very light and soft premium cotton for the pants which makes it very light and comfortable."

⭐⭐⭐⭐⭐ Christopher S. from USA
"First of all, best dogi I have ever owned. So strong and thick, yet still so easy to move in and so much room. Expertly tailored and stitched for knockdown competition. I highly recommend this dogi and ChokeSports!" 

⭐⭐⭐⭐⭐ John K. from USA
"Absolutely love my new gi. Everyone in the dojo is now getting one. Perfect fit to the measurements in the ordering size chart and prompt delivery from Japan. It is the most comfortable gi I have worn. Very happy. Osu!" 

▶️ Click here to add Custom Embroidery in English and in Japanese.
▶️ Click here to request Size Adjustments for a perfect fit.

🌟 The Isami Karate Gi Mas Oyama is the most famous and iconic uniform is our lineup. Model K-400 Classic was the first Isami Karate Gi Sosai Oyama wore. He eventually switched to the upgraded version called K-500 which he considered the most durable and comfortable Full Contact Karate Gi he had ever tried. Make no mistake: this is a premium unbleached karategi made in Japan for karateka who demand the best. We hope the spirit of osu will inspire you to fight harder!

    Authentic Karate gi custom made in Japan. This is the hardest model in our line up, and yet extremely comfortable to wear. The jacket is made of 100% cotton canvas; pants are made of 100% cotton twill. The stitch lines are reinforced, perfectly laid out and will never break. 

    Slightly softer than the K-500 and Sosai Oyama's original Karate gi. The fabric is Japanese (jacket 100% cotton canvas, pants 100% cotton twill) and the uniform is assembled in Vietnam. Please note that sizes 0-3 come with an elastic waistband, whereas larger sizes feature the traditional drawstring.

    ⏲️ The Isami K-400 Classic is usually in stock and ready to ship, whereas the Isami K-500 Mas Oyama takes approximately 10-15 work days to custom make in Japan. The whole process is handmade and we always have many orders waiting in line. We will send you a completion estimate a few days after the order is placed so you know when it will ship.
    ✅ Because the K-500 Gis are made to order and unique, they cannot be returned or exchanged. So please make sure to double check all the details before completing your order. Once we start working on the Gi, no changes will be accepted. All sales are final.
    🤩 We guarantee the wait is very much worth it: we'll custom make the Karate gi exactly the way you want it!

      As of April 2018 we have updated our sizes so that all Isami Full Contact Karate Gis at follow the same size chart. So please make sure to check the detailed dimensions in our new size chart to find the best fit for your body type. If needed you can mix and match jacket and pants in different sizes for a perfect fit.

      Free Shipping starts at $150
      Orders under $150 pay a flat fee of $14.50

      Free Shipping starts at $150
      Orders under $150 pay a flat fee of $19.50

      Free Shipping starts at $100
      Orders under $100 pay a flat fee of $9.50

      Free Shipping starts at $200
      Orders under $200 pay shipping fee starting at $19.50

      All orders are packed and shipped directly from our main warehouse in Saitama, Japan. We process and dispatch orders on regular business days (Mon-Fri) except for national holidays in Japan.

      EXPRESS (most popular)
      Shipping time is 5-10 work days but not guaranteed
      Tracking & Insurance

      Shipping time is 10-15 work days but not guaranteed
      Tracking & Insurance


      What Customers Are Saying About Chokesports

      Isami has been around forever and nothing beats the hand made quality. Black Belts are so hard to earn, and you wear them for so long, that you need to spend the extra dollars and wear a ChokeSports belt.

      Kirkor B. Connecticut, USA

      My overall experience has been awesome. The quality and the detail of the items are simply second to none. Plus the best customer service I have ever experienced. I can't thank you enough!

      Steve T. Nevada, USA

      From the get-go, everyone I communicated with showed a genuine interest in getting my measurements correct and the proper items for me. Better services and better products would be impossible!

      Jeff L. New York, USA

      I'm always happy to open the package to discover another new obi belt. The quality is still the best, delivery time still there, and most important the service is number one. Very dedicated to the client.

      Ghislain F. Quebec, Canada

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