Ortholite sockliner: Comfortable insole with long lasting anti-microbial properties to reduce bad odors. Helps to reduce growth of bacteria and fungus. CLOUDFOAM: A holistic comfort experience from step-in to stride. Designed for an ultra-soft step with superior cushioning. Find your stride in these running shoes. A cushioned Cloudfoam midsole provides comfort for every push-off and landing. The breathable upper gives them a lightweight, airy feel.