.Custom-built. The Acorn Crossroad Mule is fully-lined with moisture-wicking cotton for the ultimate in comfort.Stay warm and cozy with the Acorn Crossroad Mule. The Italian wool-blend upper or stain- and water-resistant suede upper of this men's casual slide offers durable comfort. A contoured, removable insole delivers anatomical arch support, while the rubber outsole is hand pressed with natural jute and cork for sturdy traction, indoors or out.Optimized