Rostock - Dark brown leather, classic refinement. The Rostock men’s dark brown calf leather Oxford shoe is crafted with a smooth leather upper and classic closed lacing design for a polished formal look. Its rich dark brown tone, clean silhouette, and dual density sole make it ideal for office wear, formal occasions, and refined everyday styling. Materials: Upper: Calf LeatherInsole: Leather LiningSole: Dual Density Sole Finished with timeless Oxford craftsmanship and a deep brown leather finish, the Rostock brings together comfort, durability, and sophisticated masculine style.