Sergio Rossi long boots. Color: GRIS NOIR (Gray Black). A dark gray with a slight purple hue. The material is soft suede, and they are the type that you slip on without a zipper, offering a relaxed yet beautiful silhouette. Size: 37 (approx. 24cm) Heel: approx. 7.5cm Calf circumference: approx. 36cm Shaft height: approx. 38.5cm from the heel