Comfort features include the soft EVA foam footbed and a breathable nylon mesh sock lining. The durable rubber outsole is on-trend, and delivers the traction you expect from Cat Footwear. Sport Nubuck leather and nylon mesh upper offer style, durability and breathabilityMORE INFORMATION:. Durable and lightweight EVA Midsole. Strobel Construction. Soft, breathable nylon mesh lining