Synthetic sole Men's running-inspired shoes for lightweight comfort CUSHIONED MIDSOLE: Cloudfoam midsole for step-in comfort and superior cushioning FLEXIBLE UPPER: Soft textile upper is stretchy and comfortable SYNTHETIC OUTSOLE: A durable synthetic outsole provides traction MADE WITH RECYCLED CONTENT: Made with a series of recycled materials, this upper features at least 50% recycled content. This product represents just one of our solutions to help end plastic waste