With its easy slip on style and a padded collar for added comfort, the Sergio has a textured toe guard and hardwearing outsole allowing for extra durability. Upper: Leather Lining: Nutex Sole: Thermoplastic Rubber (TPR) Heel height approx. 1 cm. This shoe features a micro fresh lining for freshness and a hard wearing and durable outsole for longevity. It has a simple slip on design. The upper is made of Leather, the lining is Nutex, and the sole is made of TPR. The heel height is approximately 1.0 cm.