The slip-on shoe is a big hit this season. Dune embrace the trend with Gretta, a wedged mule style sandal with a wide vamp and open toe finish. The padded footbed adds extra comfort meaning you can wear them all day and through to the evening. Team with a maxi dress and your favourite sunglasses for a holiday-inspired look. Brand : Dune. Heel Height Information Heel Height: (approx) Flat: <1cm; Low: 1-4cm; Mid: 5-8cm; High: 8+cm : Mid. Heel Type : Wedge. Main Shoe Material : Leather. Material : Upper: leather, Sole: synthetic. Shoe Size : 4. Shoe Style : Sandals.