This is a Black Collar Uniform for Yesha Black Belts.

The plain fabric uniform is for any Yesha black belt that needs an extra or replacement uniform.  The plain fabric uniform is also the formal dress uniform for Yesha 1st dan black belts.

The ribbed fabric uniform is for Yesha 2nd dan and above that are looking for an additional or replacement uniform.  The ribbed fabric uniform is also the formal dress uniform for Yesha 2nd and 3rd dan black belts.