I did find this on one retailers web site:
SHIHAN-TOURNAMENT TKC-10 / SHIHAN KC-10: Superior Heavy Weight Gi designed especially for Shihan. Exclusive original material (rayon, polyester and cotton).
Shrinks less and keeps a very nice white colour longer than 100% cotton gis. Very comfortable to wear. We recommend the Tournament cut version (TKC-10)
Karategi Shureido
NEW WAVE 3: Highest quality, heavy (cotton and polyester) with special SNAP effect! The exlusiv choice for the best KATA competitors and INSTRUCTORS only! The new design comes with much shorter trousers and sleeves according to the idea to leave some centimeters above the ankle and half of the forearm uncovered. Does not shrink. Easy to iron.
No brand logo embroideries on the uniform!
Select your version: NW-3 (HEAVY: Perfect for Kata), NW-2 (MEDIUM: 12% less weight than NW-3, perfect for all kind of uses) or NW-1 (LIGHT: 25% less weight than NW-3, perfect for Kumite and in all situations when you sweat a lot.).
another seller
Kata Shureido New Wave 3 (NW3)
Kata is more technically demanding than ever before and you need a sharp cut Gi that delivers huge performance. The New Wave 3 is the
world's best Karate Kata Gi. Production times are backed up due to high seasonal demand as they are custom tailored by hand in
Okinawa one by one suited for each athlete.
The New Wave 3 has a unique poly cotton blend that keeps it lightweight and breathable while offering a rigid look with wide cut arms and legs that taper in the bends at the knee and elbow. The extra thigh room allows for deeper stances with less constriction and huge snapping when techniques are launched.
This is the
Kata gi of choice for many World Karate Champions.
Yet another one:
K10
Description
Japans Top of the line Karate gi !! It is a traditionally cut Karate gi, meaning that it does not have short sleeves or pant legs, and is made of 100% duck canvas cotton. Duck canvas cotton is also known as duck cloth. It is a tightly woven cotton fabric that is excellent for a variety of things, including heavy weight Karate gis.
The Shureido K-10 is both available in white only. They are also cut larger than most heavyweight karate gis, something that you should keep in mind when ordering. If you are unsure which size to order, please feel free to e-mail us your height, weight and waist size and we will be able to match you up with a perfect fit.
Like most heavyweight Karate gis, the Shureido gis do not come with a belt, so if you are looking for a high-quality belt to match your high-quality gi, you may want to check out the Shureido Deluxe belts. They are available in cotton or satin.
Still more:
The Karategui Shureido New Wave 3- WKF, is the most popular karategi in Kata competitions. It is used by the karatekas and teams with the highest Kata ranking. Teams from Japan, Turkey or Hong Kong do not hesitate to compete with this unrivalled Karategui. Its SNAP effect is unrivalled and so is its presence. The karategui enhances the strength of the karateka and the precision of its movements with every sound, with every position. The skirt is at just the right height and stays stretched from behind without falling. The sleeves and trousers are pre-cut to WKF competition size, adapted to a standard size. The same cut of the uniform is more adjusted to the body of the karateka, more fitted.
What special features does the New Wave 3 fabric have?
The yarn is a double-structured grain and contains polyester staples as a central core, covered with cotton. This innovative material has a skin-friendly texture and at the same time features a strong, unique central core. The snap provided by this karategi is second to none.
It is a heavy weight Karategi, made of a blend of polyester and cotton. Suitable for dynamic movements thanks to its three-dimensional cut trousers.
The fabric is exceptionally firm. It retains its shape with a special sewing system that in turn absorbs sweat in the back.
The shrinkage of the jacket and trousers length is 2 cm.
another
k10 100% Cotton, Heavy Weight Gi, Shrinkage 5cm Shipping wt. 1.8000kg
NW3 Polyester/Cotton, Heavy Weight, Shrinkage 1.5kg, Weight 1.5kg Shipping wt. 1.5000kg