The combination of reinvented styling and the rugged yet refined Ben outsole allows these new offerings to mix premium comfort alongside sleek styling. The Serena has the extra-tough, durable sole—chunky grooves with bars and stars underneath for solid footing. This Serena is lined with soft, rich artificial black fur. Original Doc DNA is still intact, though— like yellow stitching, grooved sides, and heel loop. Winter never saw it coming. The Serena is constructed on our iconic air-cushioned sole, that's oil-and-fat resistant with good abrasion and slip resistance—and has been since 1960. This shoe is Goodyear-welted, meaning the upper and sole are sewn together in our heat-sealed z-welt stitch. It’s made with Cartegena leather, a soft natural grain leather with a smooth finish.