Isami Black Belt Master

Made in Japan

Sale price$79.95
Made to Order (20-30 work days)


The Isami Black Belt Master series from ChokeSports represents the zenith of martial arts gear, meticulously crafted for karate masters and martial arts enthusiasts who demand the best. These belts, available in silk, satin, and with a unique red core option, are not just accessories but symbols of martial arts mastery and dedication.

  • Premium Materials: Choose from luxurious silk or shiny satin for an unmatched elegance and unique texture.
  • Masterful Craftsmanship: The F-1000 and F-500 models feature a distinctive shine and durability, designed to fray gracefully, revealing a white inner core.
  • Symbolic Design: The F-910 model, with its textured fabric and red core, symbolizes deep dedication to martial arts, encouraging continuous improvement.

The Isami Black Belt Master series is designed for those who understand that a black belt is more than just a belt; it's a reflection of the journey and commitment to martial arts. With options for silk, satin, or a meaningful red core, each belt is a masterpiece of Japanese craftsmanship and design. Elevate your martial arts experience; customize your master black belt with beautiful embroideries and stitched degrees today.

  • Unique Fraying: Special fabrics are chosen to age beautifully, symbolizing your growth and mastery in martial arts.
  • Ultimate Customization: Personalize your karate black belt with up to 10 stitched degrees in gold or white, ensuring your belt is as unique as your journey.
  • Timeless Quality: These belts are designed to outlast the rigors of training and competition, embodying the spirit of martial arts mastery.
Isami Master Karate Black Belt from

The Isami Black Belt Master series is acclaimed for its outstanding quality and attention to detail, as echoed by our satisfied customers. Whether it's a gift for a promotion or a personal achievement, these belts represent the pinnacle of martial arts excellence. Join the ranks of dedicated practitioners who choose Isami for their martial arts journey. Customize and order your master black belt now for a timeless symbol of dedication and achievement.


⭐⭐⭐⭐⭐ 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."

BELT MODEL: Which one is right for you?

➡️ 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.

ChokeSports Isami Belt Embroidery


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!

ChokeSports Belt Embroidery

📏 BELT WIDTH: 42mm, 45mm, 50mm

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.

ChokeSports black belt width


Your new Isami Black Belt will shrink naturally due to humidity and sweat. That's why we say in Japan that "the fabric is alive". Below you'll find our estimated shrinkage rates for each model. Please take this in consideration when selecting your optimal belt size...
F-1000: 4%
F-500: 5%
F-910: 5%


In Japan it is uncommon to wash the obi martial arts belt. However many of our international customers like to wash their belts. We recommend hand washing (with hand soap) and hang drying in the shade. Please note that regular washing will accelerate the belt's aging process and might cause it to shrink further than estimated. It will still be functional and last for many years though.


⏲️ It takes 20-30 work days to custom make your new belt, but we also offer a rushed service (10 work days) for urgent orders. 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 these belts 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 belt, no changes will be accepted. All sales are final.
🤩 We guarantee the wait is very much worth it: we'll custom make the belt exactly the way you want it!

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