Koshitsu is a product that has achieved a smoother surface and longer lasting durability through high temperature, high pressure treatment and impregnation of natural plant wax developed by Seeknit company based on their vast experience over 100 years of history. It is characterized by the apparent density of the needles, the glossy surface, and the slippery feel. And above all, it is Seeknit original lineup that no other company offers.