Isami Karate Gi Mas Oyama

Made in Japan

Jacket: 3 150cm 4'11"
Pants: 3 150cm 4'11"
Price:
Sale price$159.95
Stock:
Pre-Order

Recommended with Isami Karate Gi Mas Oyama:

Your gi shipped inside this traditional Japanese box

It feels like you're fighting with bare hands!

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Pre-Order: This item ships in approximately 2-3 months. Pre-order now to secure yours and receive email updates throughout production and delivery!

⏲️ If the size you want is marked as "Pre-Order", it will take about 2-3 months to prepare and then ship. The whole process is handmade and, due to the high volume of orders, we are currently unable to expedite any orders. This deadline ensures our craftsmen have sufficient time to create your item with the attention to detail it deserves. Thanks for your understanding.

📧 Pre-order now and you'll receive the following email updates:

  • provisional shipping estimate a few days after placing the order.
  • the precise shipping estimate when the item has moved through various stages of production.
  • door-to-door tracking once the order has shipped.

✅ Please make sure to double check all the details before completing your order. Once we start working on the order, no changes will be accepted

🤩 Trust in ChokeSports.com, Isami's official international partner since 2006, to deliver nothing but the best!

Description

TL;DR: The Isami Karate Gi K-500 is a heavyweight, unbleached karate gi crafted in Japan for serious Kyokushin and full-contact fighters. Thick, durable, and built to last, it delivers unmatched snap and comfort. Made in Japan for those who demand the best. Order now!

  • Authentic Mas Oyama Karate Gi – Designed for Kyokushin and full-contact karate
  • Heavyweight Japanese cotton canvas – Delivers a crisp, powerful snap with every strike
  • Unbleached ivory color – Traditional look that softens beautifully over time

This Japanese karate uniform is handcrafted by master seamstresses in Japan using premium 11oz cotton canvas for the jacket and lightweight yet durable cotton twill for the pants. It’s the hardest karate gi Isami makes, yet still comfortable and flexible for unrestricted movement.

 

Isami Karate Gi Mas Oyama-Isami-ChokeSports
  • Reinforced stitching – Designed to withstand intense training and competition
  • Superior fit and cut – Sleeves stay out of the way during sparring, and the jacket stays securely closed
  • Trusted by elite karateka – Used by full-contact fighters and Kyokushin practitioners worldwide

This is not just a karate gi; it’s a piece of martial arts history. With a flawless balance of durability, comfort, and tradition, the Isami K-500 is the ultimate heavyweight karate gi for serious fighters. Tested. Proven. Legendary.


inches
cm
3 4 5 6 7 8
Jacket Length 29.1" 31.1" 33.1" 33.9" 35.4" 36.6"
Jacket Width 23.6" 24.8" 26.4" 27.6" 29.1" 31.1"
Sleeve 10.2" 11.4" 12.6" 13.8" 15" 16.1"
Pants Length 35.8" 39.4" 41.3" 42.9" 44.9" 46.9"
Pants Width 18.9" 20.5" 22" 23.6" 24.4" 26"
Hem 10.2" 11" 11.8" 12.2" 13" 13.4"

Your new gi is not pre-shrunk and will reach the size chart dimensions after 2-3 washes.
Sizes may vary plus/minus 1" or 2cm.

inches
cm
3 4 5 6 7 8
Jacket Length 29.1" 31.1" 33.1" 33.9" 35.4" 36.6"
Jacket Width 23.6" 24.8" 26.4" 27.6" 29.1" 31.1"
Sleeve 10.2" 11.4" 12.6" 13.8" 15" 16.1"
Pants Length 35.8" 39.4" 41.3" 42.9" 44.9" 46.9"
Pants Width 18.9" 20.5" 22" 23.6" 24.4" 26"
Hem 10.2" 11" 11.8" 12.2" 13" 13.4"

Your new gi is not pre-shrunk and will reach the size chart dimensions after 2-3 washes.
Sizes may vary plus/minus 1" or 2cm.

🧼 Washing & Shrinkage

  • Expect Some Shrinkage: Your gi isn't pre-shrunk. It may look a bit large at first, but will adjust to the perfect size after 2-3 washes.
  • Washing Instructions: Wash at a maximum of 40°C. Avoid bleach to protect the fabric's integrity. Dry cleaning is safe.

👕 Drying

  • Hang Dry Method: Use separate hangers for the top and pants. Dry in the shade to maintain its shape.
  • Tumble Dry Caution: If using a tumble dryer, stop at 80% dryness to prevent excessive shrinkage. Then, hang it to finish drying.

🩸 Stain Management & Rotation

  • Quick Action for Stains: Wash immediately after practice if stained, especially with blood, to avoid permanent marks.
  • Rotation Strategy: Like many of our customers  who train frequently, consider rotating multiple gis. This ensures a fresh gi for each session and extends the life of each one.

🥋 Isami Karate Gi Mas Oyama

Model: K-500
Color: Ivory (Unbleached)
Fabric: 100% Japanese Cotton
Jacket: Heavyweight cotton canvas
Pants: Durable yet lightweight cotton twill
Fit: Six sizes for men & women (mix & match available)
Pants: Secure drawstring waist
Made in Japan

In Stock items usually ship within 3-5 work days as some items are stored in different warehouses.

Pre-Order items ship as soon as the items are ready (please refer to current production times in the product page).

✈️ Express delivery and door-to-door tracking.
⏳ The delivery time kicks in once we have dispatched your order.
📦 We dispatch orders from our warehouse in Japan on regular business days (Mon-Fri).
🧾 Customs duties and taxes are not pre-paid and you are responsible for paying these at the time of delivery (if there are any). 

Click here to know more about delivery

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews
4.9 Based on 31 Reviews
5 ★
97% 
30
4 ★
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Filter Reviews:
MS
11/15/2023
Manolo S.
Chile
I recommend this product

Isami Karate Gi Mas Oyama

Junto con saludar, les comento que es mi primera compra en CHOKESPORTS, he quedado gratamente sorprendido por la atención orientada hacia el cliente , respondiendo a todas tus inquietudes, así como el proceso de compra que es muy simple. El karategui es lo que esperaba , alta calidad y manufactura, si lamento que no tenga bordado el Kanji Kyokushin . Recomiendo sin duda. OSSU

ChokeSports Isami Karate Gi Mas Oyama ReviewChokeSports Isami Karate Gi Mas Oyama Review
04/10/2024

ChokeSports

Dear Manolo, Hola from ChokeSports! We're thrilled to hear about your positive experience with your first purchase, the Isami K-500 Mas Oyama Karate Gi. It's wonderful to know that our customer service and the simplicity of the purchasing process exceeded your expectations. We're glad the quality and craftsmanship of the karategi lived up to what you were hoping for. We appreciate your feedback on the Kanji Kyokushin embroidery, however our company has completely stopped making Kyokushin-specific products many years ago. Your recommendation means a lot to us, and we’re delighted you chose to share your experience and the shots of your new gi. Thank you for choosing ChokeSports for your Karate needs. We look forward to serving you again in the future. Osu! Best regards, The ChokeSports Team

BR
03/28/2023
Byron R.
United States
I recommend this product

Amazing Dogi! Amazing service! Osu!

My overall experience with ChokeSports and Isami has been second to none! Very prompt and helpful responses to questions I had before putting in the order, Lisa and team are in a league of their own! Onto the gi, the Japanese quality, which I am no stranger to, is immediately apparent from the material to the workmanship. Coming from other Japanese branded traditional dogi and full contact dogi made abroad with Japanese material, the ISAMI K-500 checks all the boxes! Compared to other Japanese brands specializing in traditional dogi, the ISAMI K-500 has fewer rows of stitching at the hems of the sleeves and legs, but the stitching is as described, perfectly laid out. I find the fewer rows of stitching at the hems to be desirable for rigorous, hands on training as it tends to be softer and more flexible. Make no mistake, this is a working dogi, however it still looks very nice and sharp! The jacket has that one of a kind Japanese cotton canvas feel. It's very thick and firm while being extremely comfortable. The cut is absolutely perfect for fighting karate. The snap from executing strikes and blocks is definitely there while still allowing great comfort and mobility over more traditional styled dogi. Absence of ties, proper reinforcement and top notch material and workmanship ensure this gi will have a good long life and survive many bouts and rigorous training sessions with proper care. The pants are the best fitting and feeling dogi pants I've ever tried. Perfect cut for unrestricted movement and kicking. They are a little thicker and firmer than other (not ISAMI) full contact twill pants I've had. All while being extremely comfortable. Being an inherently softer and lighter material than the top, the snap is lessened, but still very much there. This gi is definitely up for any task and I wholeheartedly recommend it!

ChokeSports Isami Karate Gi Mas Oyama ReviewChokeSports Isami Karate Gi Mas Oyama Review
02/25/2025

ChokeSports

Hello Byron, Thank you for your incredible review and for sharing photos of your custom-embroidered Isami K-500 Mas Oyama Karate Gi! We’re honored to have you as a loyal customer and thrilled that both the gi and our service exceeded your expectations. Your detailed breakdown of the fabric, fit, and craftsmanship is spot on—this gi is truly designed for serious training, and we’re glad to hear it checks all the boxes for you. The balance between durability, comfort, and that signature Japanese cotton canvas feel makes it stand out among the best. We appreciate your recommendation and the passion you bring to your training. If you ever decide to add another Isami gi to your collection, we’ll be here to assist you! Osu, and best regards, The ChokeSports Team

VA
03/14/2023
Việt A.
Vietnam

K500 - GI

This is Gi very good for Karate Kyokushin. I always believe GI of ISAMI.Osu

ChokeSports Isami Karate Gi Mas Oyama ReviewChokeSports Isami Karate Gi Mas Oyama ReviewChokeSports Isami Karate Gi Mas Oyama Review
03/19/2023

ChokeSports

Hi Viet. Thanks for posting the closeup photos with your feedback. The Isami K-500 Karate Gi was Sosai Mas Oyama's favorite uniform until the end. This is our top unbleached karategi made in Japan for a reason. We no longer add Kyokushin Kanji embroidery and Kanku labels to any of our products, but the gis are still produced the exact same way: same fabric, same cut, same standards etc. You know you can count on us for your Karate equipment needs! Regards from your friends at ChokeSports.com.

AA
01/01/2020
Andrey A.
Russia

Isami gis are the best

Already bought the third gi Mas Oyama K-500. The very first one has already been torn, worn for eight years. Isami gis are the best!

ChokeSports Isami Karate Gi Mas Oyama Review
02/25/2025

ChokeSports

Здравствуйте Andrey, Thank you for your fantastic review and for sharing a photo of your custom-embroidered Isami K-500 Mas Oyama Karate Gi! It’s incredible to hear that you’ve trusted Isami for so many years and that your first gi lasted a full eight years of hard training. That’s a true testament to its durability and craftsmanship! We’re honored to have you as a loyal customer, and we’re sure your new gi will serve you just as well. If you ever share more moments from your training, feel free to tag us with #chokesports—we’d love to see your gear in action! Спасибо, и всего наилучшего, The ChokeSports Team

AH
02/25/2025
Austin H.
United States

Exceptional

The Isami K-500 is among the best karate gi's I have worn. I have worn the Shureido k-10 for the last ten years, but the Isami K-500 is superior in several areas: fabric, fit, and comfort. The unbleached fabric is softer right away, and the natural hue of the fabric is quite nice. The fit is excellent, with sleeves short enough to stay out of the way in sparring and drilling without alterations needed. The top length means it stays shut better than shorter tops. The pants, a lighter fabric than the top, are a soft, comfortable twill that make for easy kicking and footwork. As a fan of high quality, Japan-made clothing, this gi stands as a testament to Japanese craftsmanship in tailoring and garment making, not just a a great karate gi. This will not be my last k-500 Oyama gi. If you're on the fence: do it. I wish I had five of these in the closet!

02/25/2025

ChokeSports

Hello Austin, Thank you for your incredible review and for being a loyal customer! We’re thrilled to hear that the Isami K-500 Mas Oyama Karate Gi has exceeded your expectations, especially when compared to other top-tier brands. It’s great to know that the fabric, fit, and comfort make a real difference in your training. Your appreciation for Japanese craftsmanship is something we truly share, and we're honored to provide you with gear that stands up to the highest standards. If you ever decide to fill your closet with five of these, we’ll be ready to help! If you have a moment, we'd love to see a photo of you wearing your gi. Feel free to share it here or on social media with #chokesports. Thanks again for your support, and we look forward to serving you again! Best regards, The ChokeSports Team

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