The Isami Black Belt Master is the ultimate karate black belt, crafted in Japan for martial artists who demand nothing but the best. Available in luxurious silk, glossy satin, or the powerful red-core model, each belt is a masterpiece of tradition and craftsmanship. At ChokeSports.com—the official international distributor of Isami gear—you can customize your belt with embroidery and stitched degrees to make it truly one of a kind. Order today and wear a black belt that tells your story of mastery.
This isn’t just a black karate belt—it’s a lifetime companion. The F-1000 and F-500 models shine with distinction, fraying into a white inner core, while the F-910 model carries a deep red core that symbolizes perseverance and passion. Owning one of these belts means carrying Japanese tradition around your waist every time you tie it.
Whether celebrating a milestone promotion or honoring a lifetime in martial arts, the Isami Black Belt Master is the finest choice. At ChokeSports.com, we specialize in Isami black belts and make sure your belt reflects your journey. Don’t settle for ordinary—invest in a silk karate black belt that becomes part of your legacy.
⭐⭐⭐⭐⭐ Yoshi T. from USA
"Osu! I am very impressed for the love of detail. These are the ultimate belts money can buy."
⭐⭐⭐⭐⭐ Robert C. from UK
"Outstanding quality. Having just received my belt from you, I am amazed by the workmanship that has gone into it, just beautiful!"
⭐⭐⭐⭐⭐ Alice from USA
"I gave this belt to my husband for his Karate promotion. He said that after 15 years of training this is the best black belt he's ever had."
➡️ F-1000 is a stiff black belt made of silk and the most premium model we make. It has a unique shine and texture that stands out everywhere. When this belt starts to fray, the white inner core will show. It's 42mm 1.65in wide with 13 stitch lines.
➡️ F-500 is a more affordable version of the F-1000 belt: it's a stiff belt made of shiny satin fabric. When this belt starts to fray, the white inner core will show. It's 42mm 1.65in wide with 9 stitch lines.
➡️ F-910 is wrapped in a textured fabric that will fray faster than standard belts in order to show the red core. The red core symbolizes your dedication to the martial arts and we hope it will inspire you to train harder. It's 42mm 1.65in wide with 9 stitch lines.
Personalize your new Isami Black Belt with beautiful embroideries in English and in Japanese. There are six fonts to choose from and 10 different colors. We reserve about 8in 20cm of each belt end for embroideries. Long text will be resized to fit within that space.
Our Isami Black Belts feature integrated embroideries. This is the most premium method of embroidery and also the most resistant. We embroider the fabric first and then we make the belt. There will be no trail on the reverse side, but the belt stitch lines will be over the embroidery. The final product is unique and stunning!
Now you can choose how wide your Isami Black Belt should be. The standard belt width is 42mm (1.65in) but we also make wider variations that are 45mm (1.80in) and 50mm (2.00in). They are especially popular with bigger fighters/instructors who need a belt that will match their large frame.
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).
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.
✈️ 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).
📑 A signature is usually required upon delivery to ensure your package is received safely and securely.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Overall rating: 5.0 / 5 from 33 reviews.
It’s a such great quality, really surprised me. Very nice belt , beautiful, strong, stunned as much my expectations. Really… god job guys 👏🏻👏🏻👏🏻👏🏻👏🏻⭐⭐⭐⭐⭐. Osss
Store owner replied: Marhaba! Hello Leandro, Thank you for the amazing review of your Isami Black Belt Master! Hearing that the quality surprised you and exceeded your expectations means a lot, that's exactly the craftsmanship we aim for with every belt. Thanks again for choosing ChokeSports. Best regards, The ChokeSports Team
Excellent 5 ⭐. Amazing product, very good quality as I expected . Really amazing . Top God jog guys
Store owner replied: Hello Leandro,Thank you for the 5 stars and for choosing the Isami Black Belt Master! Really glad it lived up to expectations, that's exactly the kind of quality we want every black belt to feel when they put it on.Thanks as well for sharing those photos, the close-up shots and the pic of you wearing it are awesome to see. Great way to show off the belt.Feel free to keep tagging #chokesports on social media, we love seeing our gear out there.Best regards,The ChokeSports Team
Great quality. Great timeless quality that will probably outlast my body ! These belts are amazing with great attention to detail and amazing customer service from Lisa and the choke sports team
Store owner replied: Dear Professor Mansoor,Thank you so much for your outstanding review! We're honored to have had the opportunity to create a personalized Isami Black Belt Master for you, complete with your unique bear logo embroidery. It's fantastic to hear that the quality and attention to detail have met your expectations.We're very fortunate to have customers like you, and we'll continue to provide excellent service and high-quality products. If there's ever anything else you need, whether it's gear, advice, or assistance, please don't hesitate to reach out. We're here to support you on your martial arts journey.Wishing you many more successful and fulfilling training sessions at the Roger Gracie Academy in Dubai!Best regards,The ChokeSports Team
Great product!. I am very satisfied with my new Isami black belt. It is of high quality. I highly recommend Isami products.
Store owner replied: Hi Mathieu.Your Shotokan Karate Do black belt with yellow embroideries turned out so nice! The Japanese Kaisho font really makes the Kanji letters stand out beautifully. We hope you're enjoying the shine and texture of the satin fabric (model F-500) because it's one of the most special belts we make in Japan.Thanks for your support and for posting a photo of your new belt.Kind regards from the ChokeSports team.
Master belt review. Always the best service and products.
Masterpiece. My custom belt came back perfect and is Worn proudly , it is very well made and the team and communication was great throughout
4dan belt. Incredible belt fast service
Excellent response. Thank you for making business with me
Great product!!. Fast deliveryProduct exceeded expectationsFast and responsive customer service
Outstanding quality. Having just received my Belt from you, I am amazed by the workmanship that has gone into it, just beautiful!My only issue was nothing to do with you but was with the customs charge from British Border Force here in England which cost me another £87 pounds,But the quality of the Belt still made up for this,Thank you,Osu!
A work of art thank you it turned out perfect. Shipping was great,
Store owner replied: Dear Mark,Thank you for your wonderful 5-star review of the Isami Black Belt Master! We're delighted you consider it "a work of art" and that it turned out perfect for you.As a returning customer who appreciates the craftsmanship that goes into our custom gear, your feedback means a lot to us. We take great pride in maintaining these high standards for martial artists like yourself.If you have a moment, we'd love to see a photo of you wearing your new belt. It's always inspiring to see our products in action!Thank you for your continued support and recommendation. We're honored to be part of your martial arts journey.Best regards,The ChokeSports Team
Strong and beautiful. Easy to use site.
Store owner replied: Hi Rocco,Thanks a lot for your kind words and the 5-star review! We're thrilled to hear that you appreciate the quality of our Isami Black Belt Master and the ease of use of our site.If you ever need anything else or have any questions, feel free to reach out. We're always here to help!Best regards,The ChokeSports Team
Amazing, I plug a friend in name Meo
this belt being my 3rd purchase from Isami was another top quality item.I am the envy of all my fellow masters! You get what you pay for.......I try to explain this to them.As a senior grand master (10th Dan) I feel I deserve the best& Choke Sports has delivered as usual.Many compliments to your co.&Isami you always deliver the perfection we all deserve SIJO TONY MC LEAN
My belt is of exceptional quality. The materials that compose it are of superior quality and wearing my belt is a real pleasure.
Everything was as advertised and arrived as scheduled. A bit pricey but great quality. The box was so Pricey but nice. I will purchase form choke sports again.
Thank you. Your service is exceptional and very professional.
The best belt I ever purchased after 50 years in the martial arts.
I am the senior black belt at the dojo. We just recently promoted a student to Shodan. We are waiting for his certificate to arrive.I always provide the belt for newly promoted Shodan. I am holding the belt for the big day. The belt is beautiful. I will be proud to award it to a man who has gone beyond earning it.
My decision to order this belt was to get something special and it did not disappoint. After 25 years of training, this is the first belt I have purchased for myself.I gifted my own black belt, that was presented to me some years ago, to one of my students who recently graduated to Shodan. One day, it will be handed to one of his students when they too graduate.I wanted a replacement can one day become an heirloom, that can be handed down the line, so to speak.The quality and attention to detail on the belt are exemplary.Additionally, the level of contact and service from ordering through to delivery was excellent. Thank you!I will definitely be ordering again and recommending to as many as I can.Kindest Dave
i love it very much looks so very nice
Delivered few days ago, used for the first time yesterday for 2 Hours of a randori session! Confortable, god fit...in one word the top one!!Gillo
First of all many thanks to chokesport staff!!! Concerning my new belt: amazing!!That's all!!!The best one!
Its a very high quality product and You can find That in all the details.
Very high quality belt from japan. I will shop here again
Beautiful belt with fast and good costumer service. Costumer service was super helpful with helping me with a bit of custom not normally done with this model and even realised a configuration mistake I made. Love the quality and feel. Will update review after 1 month of using.
Great customer service. Very happy with the belt the I received.
Osu! I am very impressed for the love of detail. These are the ultimate belts money can buy. I can't wait to have my 1st degree kyokushin blackbelt, so i can buy one of the custome made belts :-)
Such a good quality product Highly recommanded
Nice:)
Believe the hype. I purchased the silk model F-100 and could not be any happier. Amazing quality and embroideries, definitely worth the money.
I''m really impressed that all the details turned out exactly the way I''d requested. I gave this belt to my husband for his Karate promotion. He said that after 15 years of training this is the best black belt he''s ever had.
I''ve been using the F-1000 belt made of silk for the past couple of weeks. It''s a thick core model so it''s taken this long to start to break and fall into place. It feels great, definitely not like your average belt. It has a very nice shine and texture that I''d never seen on a belt. I just wish I had also ordered the belt strap from ChokeSports to help keep the belt tied especially now in the beginning when it''s still a bit stiff. I guess I''ll get it when I order one of their Double Weave Gis.
