The Un Loop slip-on shoes comes from Clarks Unstructured range. It has a deliberate hand crafted look, with exposed seam detailing and a button to the side. Made from a exceptionally lightweight leather, it features cushioning on the insole and a soft exterior finish. The Un Loop is made for long walks! Heel height: 3.5cm. Brand : Clarks. Heel Height Information Heel Height: (approx) Flat: <1cm; Low: 1-4cm; Mid: 5-8cm; High: 8+cm : Flat. Heel Type : Flat. Main Shoe Material : Synthetic. Material : Leather. Shoe Style : Trainers & Plimsolls.