Isami Black Belt Soft


  • Our soft core black belts are easy to tie and the belt ends fall naturally after only a few training sessions.
  • You have two belt models to choose: F-450 and F-900 (see full belt specs below).
  • Personalize your new belt and make it standout with beautiful embroideries and degrees to match your martial art rank.

The Isami Soft Core Black Belts from ChokeSports are handcrafted in Japan for all styles of martial arts. They are easy to tie and keep the knot during practice. Model F-450 is our best selling soft core black belt that's especially popular with Jiu-Jitsu fighters. Whereas model F-900 is slightly wider (45mm) and ages differently than any other belt because it keeps its black color over the years. Both models are recommended for Karate, Jiu-Jitsu, Judo etc.

  • This belt features "integrated embroidery": we stitch the belt over the embroidery.
  • 42mm wide with 9 stitch lines and a White Core.
  • Made of 100% cotton (Hachijo Weave).
  • Estimated shrinkage (due to humidity and sweat): about 7.5%.
  • This belt features "non-integrated embroidery": we add embroidery over the belt stitch lines.
  • 45mm wide with 9 stitch lines and a Ivory Core.
  • Made of Tetron Fabric (65% Polyester, 35% Rayon).
  • Estimated shrinkage (due to humidity and sweat): about 2.5%.

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 us approximately 10-15 work days to custom make your new belt exactly the way you want. 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 and that we'll custom make the belt exactly the way you want it!

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

I've always had my eye on RVDDW and Isami brand gear but wasn't sure about how to order in the US. ChokeSports made the process extremely easy and the shipping was amazingly fast. Extreme recommend to anyone on the fence.

Brandon M. Tennessee, USA

Fast shipping. Tee quality and design definitely worth buying. Interesting part was the fantastic services provided by the support team so I could surprise my loved one. Truly appreciated.

Colene T. Perai, Malaysia

I have purchased 4 belts through ChokeSports. Everyone of them was of exceptional quality and the workmanship was incredible! The customer service and ease of placing my order was awesome.

Ken G. Colorado, 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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