One of the highlights of this shoe is the completely new sole which we have been putting on several tests for Martial Artists. The results are extremely good. Due to the new technology used to produce this shoe, it is not necessary to stitch the sole anymore. We only use the best and latest technology in strong and flexible super glues to guarantee a long lasting and high quality product. The outer material is made of high grade artificial leather for a maximum price-value ratio. The classic design elements easily identify this product as a pure Martial Arts shoe. We always believe in newer and better technology and believe that this product will set new standards in the Martial Arts industry.