From Oliver Sweeney, this Goodyear welted plain-toe Derby is a formal traditional style made from pristine Weinheimer calf leather. The cows graze at high altitudes, free from ticks and insects, to avoid scarring and blemishes, which produces a flawless leather. Inside there's a full leather lining and leather insole with an additional cushioned leather heel pad. The upper is Goodyear welted to a...