Features of the Merrell Men's Downtown Flip Sandal Full grain leather Upper Pig skin lining for premium comfort and breathability Anatomically molded Footbed Air cushion in the heel absorbs shock and adds stability Anatomically designed to follow the natural flex of your foot Integrating resilient Return Foam cushioning and contoured support to give you an ideal combination of natural freedom of movement, stability and all-day comfort Outsoles root themselves in Performance designs and materials to deliver durable Highly slip-resistant traction on wet and dry ground, and over mixed terrain Antimicrobial agents penetrate and disrupt the reproduction of the odor causing microbes in your shoes