This model is a standard men's shoe size. Buy according to the size you usually wear. If your feet are wider or your insteps are higher, choose one size larger. DERBY shoes (DERBY), also known as LACE-UPS, is a general term for a type of "lace-up shoes" that is very popular in Europe. Choose the archival DERBY shoe shape for adjustment. The toe is more rounded and weakens the traditional gentry atmosphere.