Product Story Even The Most Dedicated Athletes Need To Take It Easy Sometimes. These Sporty Slides Are Downtime For Your Feet, Made With Our Ultra-Cushioning Nitro Foam For The Softest Step Around. Features & Benefits Nitro: Advanced Nitrogen-Injected Foam Designed To Provide Superior Responsiveness And Cushioning In A Lightweight Package. Details Synthetic Leather Upper Adjustable Hook-And-Loop Strap Full-Length Nitro Foam Midsole Rubber Outsole Puma Cat Logo On The Strap.