The upper of the shoe is made of Ultrasuede®. Highly innovative material developed by the Japanese manufacturer TORAY. Produced using ultra-fine fibers made from recycled polyester collected from recycled plastic bottles. One of the best quality leather alternatives offering soft touch, breathability and superior durability. Our barefoot shoes and sustainability go hand in hand! OLEN meets all the characteristics of a barefoot shoe: it is fully flexible, light, has a very thin sole with zero heel rise, and plenty of room for your toes. The model is available in two widths: regular and wide (marked w when choosing the size).The shoe is designed and produced in the EU under fair working conditions using sustainable materials.   Are you buying your first barefoot shoes? Download a FREE educational brochure here..Shoe careIt is always good to waterproof the shoes before wearing them for the first time. The impregnation liquid is absorbed into the shoe, making its surface resistant to the external environment, preserving the color and extending the life of the shoe. Impregnation prevents not only moisture, but also penetration of dirt.To ensure water resistance, we strongly recommend waterproofing the footwear properly and regularly with common impregnation products. Before waterproofing, remove dirt and dust from the shoes and let them dry completely.We recommend cleaning your shoes with a soft brush or damp cloth. Allow the shoes to dry sufficiently before putting them on. Do not place your shoes near direct heat sources. Do not wash in the washing machine. Colors may fade over time.Give your shoes the care they need with our recommended shoe care products here.User instructionsView here