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Kodokan Official Judo Black Belt


- Excluding taxes (international sale) (more details on taxes)
- Shipping fees: $10.00 (more details about shipping & delivery)
- Return/Exchange: only for men (unisex) models and if not embroidered.

- Availability: ~ (at warehouse) (made to order)  |  Estimated shipping date:
* Automatic update based on selected options

Availability: usually shipped within 2 business days (in stock)
* Automatic update based on selected options

Sizing / IJF regulation
  • Belt
  • Embroideries
  • Summary & validation


[Black Belt] Superior Kodokan Shusu Kuroobi (JGK)


[Gift Box] Silver Cardboard Box / Wooden Box

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Product description: Shusu Kuroobi Kodokan (JGK) - Black Belt

Official Kodokan Thick Black Belt - Satin-Shiny

Identical in terms of material and finish to the thick black belt model JOG, the JGK Obi features the official Kodokan logo, the famous cherry blossom shaped Japanese flag. This logo is not a label (Orimono in Japanese) but a thick embroidery stitched onto the belt.

100% cotton, thick, rigid with 16 rows of top-stitching, we recommend this belt mainly to Judoka seeking a thick black belt, wanting a big knot and of course those who like the Kodokan logo from an aesthetic point of view.

Note: The sizes 6 and above being custom made, the manufacturing period is 3 to 4 weeks.

About the women's Judo belts (with white line in the centre): The Kodokan rules and the Japanese Judo federation impose a specific judo belt for women for colored up to red belts of high grades. Outside Japan, the women's type belts are often not authorized and women wear men's belts. However, in certain Dojos and Jujutsu schools they are still used. Judo women's belts are 5 cm shorter than men's belts.

Optionally with this belt we offer a storage or gift box from either silver cardboard or a wood called Kiri. The Kiri is a traditional light-weight wood, often used in ancient times for the conservation of precious objects because of its characteristics to absorb humidity and resist fire.

  • Core: 100% cotton
  • Outer layer: 100% Shusu cotton (glossy)
  • Width: 4.5 cm
  • Stitching: 16 lignes de surpiquage
  • Availability: usually within 7 to 10 days

Choosing your size

At the top right of every belt page, there is a button "size table" and a button "IJF Regulations and body" for more information concerning these topics.

  • Size chart men / size chart women: ells you the recommended size according to your waistline, also taking into account the thickness of the belt (and its knot).
  • IJF regulations / measuring: Explanation of the international standards of the federation as well as how to take measurements.

About the different embroidery types

KuSakura proposes two types of embroidery for black belts: integrated and non-integrated embroideries. Non-integrated embroideries are offered on all belts, whereas integrated embroideries are only possible on black belts except the IJF models.

Non-integrated embroideries (from $9): are performed after the manufacture of the belt, which means that the embroidery is on top of the lines of stitchings of the belt and visible on the reverse side, too. Non-integrated embroideries are less durable than integrated embroideries but less expensive, because they are easy and fast to achieve.

Integrated embroideries (from $13): This type of embroidery is made on the outer layer of the belt, before the belt is manufactured. The lines of stitching of the belt are sewn on top of the embroidery and the embroidery is invisible on the reverse side. This type of embroidery is more expensive, because it is much more time consuming and difficult to achieve a good (centered and straight-lined) result. Because the belt is in this case made to order, integrated embroideries cause a delay of 3 weeks.

* It is not possible to make an integrated embroidery on one and a non-integrated embroidery on the other end.

Non-Integrated Embroidery

Integrated Embroidery

Please read the embroidery description and instructions very carefully.
Embroideries will be performed exactly as described.

[Integrated Embroidery] For Black Belt - Position 1


[Integrated Embroidery] For Black Belt - Position 2


[Non Integrated Embroidery] For All Belts - Position 1


[Non Integrated Embroidery] For All belts - Position 2

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About embroideries

All embroideries are realized on a high-end professional machine of the brand Barudan. A non-integrated embroidery delays the shipping by 3 days and an integrated embroidery by 3 weeks.

The embroideries have an average size of 2.5 cm per character for Japanese characters and English capital letters and 1.5 to 2 cm for English lowercase letters.

We offer embroideries on one end or both ends of the belt. If you would like an embroidery at a different spot, thank you for contacting us for a quotation. *However, given the little space on a belt, it is not possible to embroider e.g. a logo.

1 - Embroidery Content

By default, we offer to embroider your first and/or your family name and further any other word or expression of maximally two words.
It is necessary to choose the corresponding option to the desired embroidery for that the billing is correct. Either $9 for a name or $17 for a first AND family name or all other embroideries consisting of maximally 2 words.

  • First OR family name: e.g. Marc, John, Smith, Miller, etc.
    In the case of a compound name : Thank you for choosing the option "First AND Family name". We refuse to embroider a compound name PLUS family because of their length and complexity.
  • First AND Family name : e.g. Marc Smith, John Miller, Claude. C, Jack B. etc. (We do not recommend the combination of a compound name PLUS family name, to avoid embroideries that are too long.)
  • Initials : MD, CD, etc. written in English (capital or cursive letters) only ! (Initials do not exist in Japanese.)
  • Other word : This might be the name of your Dojo or any common word such as "Judo" or "Jujutsu". Note that this option is limited to maximally 2 words.

Name + initial = 2 names. If the requested embroidery content differs from the number of word option, your embroidery will be reduced to what has been paid.

2 - Languages and fonts

It is possible to embroider in Japanese as well as in English. In the case of an embroidery in Japanese, the translation is free. You simply enter your name in English and then choose the font "Japanese - Kaishotai" or "Japanese - Gyoshotai"

  • In Japanese : vertical only, classic font Kaishotai or *Gyoshotai. (*non-integrated only)
  • In English: vertical or horizontal
  • In English cursive: horizontal only
  • Note : Initials do not exist in Japanese. All initial embroideries are automatically embroidered in English.
3 - Orientation of the embroidery

All belt embroideries can either be made vertically or horizontally, except for English cursive letters, that of course are always horizontal.
* unless otherwise stated, all horizontal embroideries are embroidered so that the brand logo is worn on the right side (tied belt).

Japanese characters are usually embroidered vertically. Regarding English capital letters, the choice is yours.

4 - Content

This field is required. This is the embroidery content. This field must contain ONLY the desired content (maximally 30 characters).

5 - Colors

You can choose of 20 different colors for your embroideries.
Note that for quality reasons the colors silver and gold are not shiny/metallic as for the black belt integrated embroideries.

6 - Files or additional comments/instructions

In the field "other instructions" you can give us more details regarding the embroidery content and its realization.

Finally, you can upload a picture of the desired embroidery. Note that in many cases there are several possible variations for the name transcription in Japanese. We will not accept any claims regarding name transcriptions in Japanese if no further/exact instructions were given.

Grade (Dan) line embroidery

For this type of embroidery, it is necessary to contact us prior to ordering to determine together all details. You can visit the page embroidery information for more information before contacting us.

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About the belt sizing

Size chart
  • The size of the belt is calculated using the formula waist size x 2 + 90~100 cm.
    This formula provides a length of about 20 cm for each end once the belt is knotted.
  • We recommend to choose a 0.5 size larger for very thick belts because the knot will be bigger. The same goes for extra large/wide belts (width 4.7 cm instead of 4.5 cm).
  • The belts shrink about 10 cm when first washed, but will stretch again when used and regain their original length.
  • You can order every belt model customized, simply contact us for a quote.

About the belt sizing

Size table
  • The size of the belt is calculated using the formula waist size x 2 + 90~100 cm.
    This formula provides a length of about 20 cm for each end once the belt is knotted.
    Note that the women's sizes are 5 cm shorter than the men's sizes.
  • We recommend choosing a 0.5 size larger for very thick belts because the knot will be bigger. The same goes for extra large/wide belts (width 4.7 cm instead of 4.5 cm).
  • The belts shrink about 10 cm when first washed, but will stretch again when used and regain their original length.
  • You can order every belt model customized, simply contact us for a quote.

Usual standards in local competition

  • The "local" standards are similar to the IJF regulations, however, the controls are generally more flexible and the belts may be labeled (embroidered) on both ends without particular limitations.
  • Belt 100% cotton.
  • Width between 4 and 4.5 cm.
  • Thickness between 4 or 5 mm.
  • The belt must be long enough to leave at least 20 cm (maximally 30 cm) on each end once knotted.

About the measuring

  • - Waist circumference must be taken over the jacket.
  • - Be sure to take into account the type of knot you want to make. (If you want to tie an extra thick belt with a "double knot" choose 0.5 size larger.)
  • - The belts will shrink about 5 cm. (approx. 10 cm in the beginning, but will be stretched again when used).

Seido Co., Ltd. - KuSakura Judogi Dpt.

Shirako 2-27-51
Wako-shi, 351-0101 Saitama-ken
Tel JP: +81.4-8437-1740
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