CLARKS. 26148717. UN RIO TIE. NAVY NUBUCK. Sneakers from our Unstructured collection that are perfect for everyday adventures. The sleek upper combines soft nubuck with perforated detailing for extra sports luxe. Practical features include a leather lining and sock making for lasting comfort and freshness which is enhanced further with Ortholite moisture-wicking technology in the footbed. The lightweight rubber EVA sole will make you feel like you re walking on air.