Blitz Adult Diamond Kata Karate Gi (14oz)
- Premium
- Experienced
- General training
- Kata / forms
Image coming soon
Product details checked against available sources.
Specifications
Our verdict
Blitz's heavyweight 14oz brushed-cotton gi, which Blitz tailors for kata (forms). It has a Japanese cut, with shorter sleeves and trouser legs and a reduced lapel, and comes in white or black and in half sizes.
Blitz describes the Diamond as a heavyweight gi for advanced practitioners and instructors, tailored specifically for kata (forms). It is 14oz, 100% brushed cotton, in a traditional Japanese cut with shorter sleeves, shorter trouser legs and a reduced jacket lapel. It has tie-waist trousers and a woven Diamond label and comes with a drawstring bag. The belt is not included.
It comes in white or black, in half sizes from 3/160cm to 7/200cm against a published height chart. Blitz names no weave and makes no shrinkage statement.
Blitz is not on WKF's approved list for kata or kumite karategi (karate gis). Under WKF rules, kata athletes wear a white, WKF approved karategi (WKF Kata Competition Rules 2026, Art. 2.2.1), so it is a gi for kata practice rather than WKF events. The black version would fall outside WKF's white rule in any case.
Experienced karateka and instructors who want a heavyweight cotton gi in a Japanese cut for kata training, in white or black.
You're a beginner: see the Blitz Student. You compete in WKF kata: WKF requires a white, WKF Approved gi, and Blitz is not on WKF's approved list. Look for a kata gi from a brand WKF lists for kata karategi; the adidas K220KF is a kumite gi. You prefer full-length sleeves and trousers: see the Blitz Zanshin.
Pros
- Heavyweight 14oz, 100% brushed cotton, per Blitz
- A Japanese cut with shorter sleeves and trouser legs, which Blitz tailors for kata
- White or black, in half sizes with a published height chart
Cons
- Blitz is not on WKF's approved list for karategi
- No weave or shrinkage statement from Blitz
- Belt sold separately
Why we rated it this way
Materials & Construction (3): Blitz states 14oz, 100% brushed cotton for this gi, which it tailors for kata: the normal build for a heavyweight kata gi.
Fit & Movement (4): Blitz documents the Japanese cut in detail - shorter sleeves and trouser legs and a reduced lapel - and sells half sizes against a published height chart.
Value (3): A premium price for a 14oz brushed-cotton, Japanese-cut kata gi, sold without a belt: broadly what heavyweight kata gis at this price offer. Blitz isn't a brand WKF lists for gis, which matters only for WKF events.
Sources
- Manufacturer — Blitz's own UK product page (re-read 2026-10-22) - the purchase route in GBP and the source of: "premium heavyweight uniform", "Tailored specifically for Kata", "traditional Japanese cut" with "shorter sleeves, shorter trouser legs" and a reduced lapel, "14oz, 100% brushed cotton", tie-waist trousers, drawstring bag, belt not included, black or white, half sizes 3/160cm-7/200cm and the height chart. No weave, shrinkage or WKF wording in the product copy.
- Technical documentation — WKF approved list (wkf.net/approved; no version printed): the brands WKF lists for kata karategi; Blitz is not among them. Checked 22 October 2026.
- Technical documentation — Governing body rulebook: WKF Kata Competition Rules (Rules Version 2026.0, valid from 1 January 2026), Art. 2.2.1: athletes wear a white, WKF approved karategi; jackets without ties cannot be used (i). Checked 22 October 2026.
Methodology: research-based (not hands-on tested) · How we review products
Last reviewed 2026-10-22 · Last verified 2026-10-22