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📅 Custom belts are handmade to order rather than pulled from stock. The estimated timeline is listed in the Pre-Order box directly under the Add to Cart button. When capacity allows, a rush upgrade is available at checkout to shorten that window. This upgrade must be selected when placing the order and cannot be added afterward. This lead time ensures our craftsmen have sufficient time to create your personalized belt with the attention to detail it deserves. Thanks for your understanding.
📧 Pre-order now and you'll receive the following email updates:
a 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.
✅ 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.
🤩 Trust in ChokeSports.com, Isami's official international partner since 2006, to deliver nothing but the best!
Description
Isami Navy Blue Belt: A Deeper Shade on the Rank Where the Real Work Starts
ChokeSports.com is the official international distributor of Isami belts, and the Navy Blue is our deep midnight-shade take on the traditional blue belt, marking the same point where training stops being about survival and starts being about building real skill. Whether you're closing in on your BJJ navy blue belt, your Karate navy blue belt, or your Judo navy blue belt, this is the belt that carries you there. Every belt is one-of-a-kind and made in Japan.
Three Firmness Models, Built for How You Actually Train
Choose your fit across three models, F-350, F-400, and F-700, from Slim & Soft to Thick & Stiff
Match your body type and grip with belt widths of 1.7" (42 mm), 1.8" (45 mm), or 2.0" (50 mm)
Add a rank bar in black or red to mark stripes or instructor status
No two practitioners train the same way, so Isami builds this belt in three models instead of one, Slim & Soft, Thin & Firm, and Thick & Stiff. This navy blue belt lineup is exclusive to ChokeSports.com, you won't find all three available anywhere else. If you like a belt that shows its history, Slim & Soft develops a visible patina as it wears in, a record of every session you put into it. Full details on each model, and what separates them, are below.
A Belt That Marks Where You Are in the Journey
Wear a rank that means something whether your path runs through BJJ, Karate, or Judo
Personalize every belt with embroidery, detailed further below
Get 10 standard sizes plus custom length for a fit that matches your frame
In Brazilian Jiu-Jitsu, the BJJ blue belt is where fundamentals turn into instinct, the first real test of whether the basics have actually sunk in, and the Navy Blue carries that same rank in a deeper, more distinctive shade. In Karate, the blue belt karate rank marks steady, visible progress on the way toward brown and black. In Judo, the Judo blue belt reflects the same milestone, real time on the mat translating into real ability. This belt looks different on everyone who wears it, some are chasing gold, some are chasing consistency, and this deeper shade is built for both. Ready to order your Isami Navy Blue Belt? ChokeSports.com has outfitted serious martial artists with authentic Isami belts since 2006.
⭐⭐⭐⭐⭐ Mahir from Turkey "The quality of the belt is excellent, and the customization makes it very special. 100% recommended."
⭐⭐⭐⭐⭐ Peter from Slovenia "I am very impressed with the quality from the hands of the Japanese masters. Worth every penny :)"
🧵 CUSTOM EMBROIDERY
Personalize your new martial arts navy blue 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.
BELT FIRMNESS & EMBROIDERY
Isami belts now come in three firmness models, so you can match the belt to how you actually train. ➡️ F-350 is slim and soft, with a lightweight, "broken-in" feel from day one. We add the embroidery to the finished belt, so the stitching sits over the belt seams and the reverse side shows a visible trail. This is what we call "non-integrated embroidery." ➡️ F-400 is thin & firm, thinner than F-700 but with more structure than F-350. ➡️ F-700 is thick and stiff, built to hold its shape and take longer to break in than F-350 or F-400. Both F-400 and F-700 feature "integrated embroidery": we embroider the fabric first and then build the belt around it. There's no trail on the reverse side, and the belt stitch lines sit over the embroidery for a cleaner finish.
📏 BELT WIDTH: 42mm, 45mm or 50mm
Now you can choose how wide your Isami Navy Blue Belt should be. The standard belt width is 42mm (1.65in) but we also make two wider variations that are 45mm (1.80in) and 50mm (2in). This is especially popular with bigger fighters/instructors who need a belt that will match their large frame.
🚿 BELT WASHING INSTRUCTIONS
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.
Isami Navy Blue Belt
Brand: Isami
Material: Premium cotton
Available Styles: F-350 (Slim & Soft), F-400 (Thin & Firm), or F-700 (Thick & Stiff), exclusive to ChokeSports.com
Sizes: 10 standard sizes + custom length options
Rank Bar: Optional (black or red)
Personalization: English or Japanese embroidery available
Use: Ideal for Brazilian Jiu-Jitsu (BJJ), Karate, Judo
Origin: 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).
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.
Store owner replied:
Hej Thomas,Thank you for the 5 stars and for choosing the Isami belt! We’re really glad to hear it was true to the picture and that you’re happy with the quality.And thank you for sharing the close-up photo — it’s great to see the contrast between your new navy belt and your older one. The depth of color on the new belt really stands out. Isami craftsmanship always speaks for itself.We completely understand your point about taxes when ordering from Europe, and we truly appreciate you still rating it 5 out of 5. That means a lot.Thanks again for your support, Thomas. If you ever add another piece to your collection, don’t forget to tag #chokesports — we love seeing our gear out there.Best regards,The ChokeSports Team
Isami Navy Blue Belt. I am very impressed with the quality from the hands of the Japanese masters. Worth every penny :)
Store owner replied:
Dear Peter,Zdravo! We’re delighted to hear that you’re impressed with the quality of your Isami Navy Blue Belt and find it worth every penny. Your appreciation for the craftsmanship of our Japanese masters and your recommendation are highly valued.Thank you for sharing your experience and the close-up photo of your custom belt. We're here for any future needs or questions you might have. Looking forward to serving you again!Best regards,ChokeSports.com
Beautiful belt.. Great service. Will be back for the rest!
Store owner replied:
Hello Louis,Thanks a ton for the great review—and for coming back to us again!We’re thrilled to hear how much you love the Isami Navy Blue Belt with Japanese embroidery. It’s a real standout piece, and it’s awesome that it’s turning heads at your academy. Also glad to hear the delivery beat expectations—that's always a nice bonus!If you get a chance, we’d love to see the belt in action. Feel free to share a photo or tag us on social media with #chokesports.Thanks again for your continued support!Best regards,The ChokeSports Team
You get what you pay for. The attention to detail is great on this product, the seams are all extremely deliberate, very evenly spaced, no hanging strings or anything of the sort.
Store owner replied:
Cześć Kacper,Thanks again for another great review—this time for the Isami Navy Blue Belt. We're thrilled to hear that the craftsmanship stood out to you. Isami takes great pride in the precision of their work, and it's awesome to know you noticed the clean stitching and overall attention to detail.We truly appreciate your continued trust in us. Can’t wait to see what your next custom project might be!Best regards,The ChokeSports Team
I was excited to receive this Navy Blue belt, as I had ordered the regular blue belt but I had made the mistake of ordering the non-heavy version and the hue of blue wasn’t to my liking. I purchased a custom navy blue hoping it would be a nice deep blue, but my eyes see that it has a purple hue to it in certain lighting. As someone who respects the ranking system, not as a rule, but for those who have sacrificed their years to achieve purple belt, I cannot wear this to class as I feel like this would be disrespectful. It is unfortunate, as I was really looking forward to using this belt.
Store owner replied:
Hello Anthony,Thank you for sharing your thoughts on the custom Isami Navy Blue Belt. The navy belt is crafted in Japan with a deep midnight blue tone, designed as a sleek alternative to the standard blue belt. We understand that personal preference for color can be very specific, and it’s important that your belt feels right to you on the mat.If you’d like to explore a different shade or a heavier version, we’d be happy to guide you through an exchange to make sure you get exactly what you’re looking for.Thanks again for your thoughtful feedback—it helps us improve what we offer.Best regards,The ChokeSports Team
Excellent service, excellent product. Highly recommended to deal with Chokesports. Always consistent.
Store owner replied:
Hello Lindsay,Thank you for your glowing review of the Isami Navy Blue Belt! We're delighted to hear that you experienced excellent service and are pleased with the quality of your custom-made, stiff belt.We would love to see how the belt looks on you! If you have a moment, please consider sharing a photo of you wearing it. It’s always inspiring to see our products in use, and it helps others appreciate the craftsmanship and fit.Thanks again for your recommendation and for being a valued customer. We look forward to continuing to provide you with consistent, high-quality products.Best regards,The ChokeSports Team
The quality of the belt is excellent, and the customization makes it very special. 100% recommended.
Store owner replied:
Merhaba Mahir,Çok teşekkür ederiz for the stellar review! We're thrilled to hear that you found the quality of our Isami Navy Blue Belt to be excellent, and we agree that customization adds that special touch.We're glad to hear you're 100% satisfied with us. Your recommendation means a lot, and if you ever need anything else or want to explore more customizations, we're here to assist!Saygılarımla (Best regards),The ChokeSports Team 🥋🔵
Ordered an A2 Navy Blue Belt for my wife. Christmas Present. Color received is basically Black/Purple. Totally unwearable. Complained and was offered a Discount Code worth $4.99 on my next order. Very Disappointed in Customer Service. Everyone at my Gym thought the Color was Dark Purple. As a Customer with an Isami GI, Rashgaurds and Belts. I can without a doubt say this will be my last order from this company.
Store owner replied:
Hello John. Thanks for the feedback. We are bummed that the color was not the same that's used at your gym. Our Navy Blue is indeed quite dark and this is the color tone that is widely used in Japan when it comes to midnight blue belts. It seems like you should have picked our standard blue belt instead.Best regards from the ChokeSports team.
