Laces for style, a side zip for quick on/off, quality leather and an easy-to-coordinate navy colour: these derbies really have it all!-Closed with a side zip and laces. Comfort width for these men's zipped and laced derbies, a width adapted to demanding feet wanting superior comfort. COMPOSITION: Leather upper.Leather lining.Leather insole on foam (aéosemelle®).Elastomer sole.