Josef Seibel Stuart Derby (Men) | Nordstrom。The Josef Seibel Stuart Derby Sneakers in men\'s size 11.5 US (45 EU) are sleek and stylish dress shoes in black leather. Featuring a solid pattern, lace-up closure, and logo accent, these shoes offer both comfort and breathability with a cushioned insole and leather lining. The rubber outsole provides durability and support, making them ideal for the spring, summer, and fall seasons. Designed by the renowned brand Josef Seibel, these Derby sneakers are a versatile choice for any man looking for a blend of style and functionality in their footwear.