System devised by Geox for breathability of the outsole. Excellent flexibility guaranteed by the Flexy System integrated into the tread. Highly wearable piece of footwear that delivers superior comfort levels. Antibacterial footbed. The covering on the footbed has been made from non-toxic chrome-free leather. The single riptape closure and elasticated lacing make it easy to slip on and adjust. The removable footbed is hygienic and practical. Upper: 40% Leather-38% Textile-22% Synthetic Lining: 90% Textile-10% Synthetic Geox B Kilwi B B