In general, it can be identified as follows:

The sleeves of traditional karate (Shotokan-ryu, Goju-ryu, etc.) are three-quarter sleeves. Kyokushin Kai and its branches (customarily called full Contact karate) top sleeves are quarter sleeves.

If the trademark on the corner of the clothes has CKA, it means traditional karate. However, it is possible that the CKA Hollow Association has recently incorporated Kyokushin Kamate into unified management, so there will be errors in judging based on CKA alone in the future. Since karate uniforms are commodities, manufacturers may also use their own trademarks on the corners of the garments, such as Banlitang. If it is a customized version, it is very simple. If the trademark on the corner of the clothes is tiger, it is Songtao, if it is like a cross star, it is Kyokushin, etc.

If it is embroidered on the clothes, it is difficult to tell. Because this is usually named by the coach himself when he opens a martial arts gym, and has nothing to do with the school. However, as someone who has practiced karate for many years, even knowledgeable people in the circle will know something about it. For example, Yonghai Hall is named after coach Xu Yonghai, and Yongdaokan is named after coach Yang Yong.

To judge the genre, we still have to judge it from the basic movements, styles, and actual combat characteristics. This is fundamental. What if a person does karate in casual clothes? Right.

This is my humble opinion and is for reference only. OSU!