United Nude Mobius Sia Mid is a strappy sandal that pairs sculptural design with everyday wearability. The style is defined by its hollow loop-shaped Mobius heel and a single-band construction that unites the upper, sole, footbed and heel. Key attributes: Black | Nappa leather | Lightweight open-wedge construction | Fiber-reinforced nylon heel for stability | Hook-and-loop (velcro) adjustable strap | Integrated sole and footbed for a seamless look | Hollow loop-shaped Mobius heel | Single-band construction uniting upper, sole, footbed and heel | Strappy sandal silhouette | Gloss-finished heel | Dimensions & fit: Heel height: 65mm / 2.6in | Narrow fit | Composition & care: Nappa leather upper | Leather lining | Fiber-reinforced nylon heel | Rubber outsole