Geox Men, Geox Efrem Trainers Black - Geox Trainers Shop As comfortable as trainers and as impeccable as lace-ups, the Geox Efrem men's casual shoes are equipped with the exclusive Geox patented sole that maximises breathability and comfort for the feet. The mesh lining helps to maintain the perfect microclimate and the EVA sole makes them light, flexible and perfectly cushioned to support every step. They have a leather insole and soft leather, black upper that wraps around the foot, keeping it dry. Versatile and practical, the perfect everyday shoe. The rubber evergreen sole, patented by Geox, has changed the world of footwear.Cutting-edge technology combining a perforated sole with a resistant, breathable and water-repellent membrane, allowing natural temperature regulation and creating a micro-climate inside the shoe that leaves the foot dry throughout the day.This shoes has been certified with the TUV SUD Footwear Mark - a mark of quality and safety.The shoe has been voluntarily tested and certified based on the a TUV SUD certification program to check for any traces of chemical substances that may be harmful, hazardous to humans and the environment.