CHARACTERISTICS removable insole COMPOUND Compound Upper: 72% Synthetic-28% Textile, Lining: 97% Textile-3% Synthetic Sole type Outsole: 100% Synthetic Material, Insole: 100% Leather Breathability for the outsole and a feeling of well-being for the foot are guaranteed by Geox patented systems. Highly wearable footwear that offers superior comfort. Antibacterial footbed. The padding of the footbed is made of non-toxic chrome-free leather. Footwear with lighting and on/off switch. The single Velcro closure and elastic lace closure make it easy to put on and adjust.