Thick-soled calfskin formal brogue derby shoes coffeeThick soled calfskin formal brogue derby shoes Coffee The full grain calfskin leather upper of these Derby shoes is both supple and durable, promising to develop a rich, beautiful patina over time. The brogue style detailing adds a touch of classic elegance, while the sleek, squared toe box offers a refined, contemporary look with ample room for comfort. The leather lined insoles adapt to the shape of your feet, creating a custom like fit for maximum