United Nude Mobius Sia Hi is a sculptural strappy sandal defined by a hollow loop-shaped wedge heel and a continuous single-band construction. The design merges form and function—delivering a lightweight, architectural heel with a leather upper for elevated everyday wear. Key attributes: Black | Nappa leather | Lightweight construction | Durable fiber-reinforced nylon heel | Rubber outsole for traction | Leather lining | Hollow loop-shaped heel | Single-band construction uniting upper, sole, footbed and heel | Open wedge silhouette | Strappy upper | Dimensions & fit: Heel height: 95mm/3.7in | Narrow fit | Composition & care: Nappa leather upper | Leather lining | Fiber-reinforced nylon heel | Rubber outsole