This Instructor Uniform is the "Hayashi" Brand of heavyweight uniform. It is made of superior grade - fine combed tightly woven 100% cotton fabric. This 14 oz. uniform is generously cut and traditionally styled to ensure a stylish and comfortable fit. The uniform's seams have several rows of interlocked stitching and an additional front seam. The pants have an additional double inseam and full gussett with elastic and drawstring waist.