Men's Vance Co. Martin Oxfords Introducing the Martin plain toe derby by Vance Co. These professional-style shoes are crafted with premium vegan leather, offering a sleek and business-savvy look. Featuring a 12 mm Tru Comfort Foam™ insole and a lace-up design, they provide all-day comfort and a secure fit. With a 1-1/4 inch block heel, round-toe shape, and padded tongue for extra comfort, the Martin derby combines professional style with maximum comfort, making it an ideal choice for the office or any occasion.