This is one of the best black belts I’ve ever seen. The first time I wore it, the knot remained tight all night throughout a very hard training session and didn’t come undone! Kuroobiya were very helpful when ordering the embroidery, confirming the height of the balanced embroidery was what I wanted. The embroidery itself (integrated) is fantastic and beautiful to look at. I am 5’10, 61kg and have a 30/28” waist and the size 5 is a perfect length. Will definitely use this company again!