On Running Hi Dune Description: Durable canvas and soft vegan suede upper with seamless synthetic overlays. Breathable textile lining for comfort. CloudTec cushioning technology active only during the foot strike. Lightweight and flexible CloudTec sole unit made from Zero-Gravity foam. Perfect transition weather shoe Wear: minimal wear (see photos on bottom of trainer). There is some rubbing of the tongue against the inside but this isn’t noticeable unless you try to separate the tongue (see zoomed in photos of tongue pulled away vs normal, not the wear is covered by the tongue of the shoe). All products are from a smoke free home. Do not request or send information by email/texr. I only transact on Poshmark.