The soles show no wear, so they can be used for a long time. The classic Old Skool has been updated with a "water-resistant" water-repellent finish and a "non-slip" anti-slip rubber outsole. The "OLD SKOOL" is now available, making it stress-free even in sudden rain, and the colors are easy to match with any style. The insole is made of PU material with activated carbon. In addition to being lightweight and low-rebound, it also has a deodorizing effect.