Size 39 Duckfeet Fyn derby shoe in good used condition Fyn is Duckfeet’s take on the classic derby shoe. Signature Duckfeet foot-shaped toe box promotes a natural step by allowing toes to splay Premium, vibrant terracare® leather uppers soften and mold to wearers’ unique foot shapes. Bold, asymmetrical stitching across the toe adds style to every stride Distinctive, Italian crepe rubber soles provide great grip while remaining comfortable, durable, and biodegradable. Contrasting laces compliment crepe rubber soles, tying this unique look together.