The On-fan favorite re-engineered with 44 percent recycled content improved fit and even more comfort than ever before. Updated silhouette with new materials and tech features Breathable antimicrobial mesh with taped reinforcements CloudTec in Zero-Gravity foam for a cushioned landing Updated Speedboard transforms energy into forward motion Molded heel design holds your foot securely in place More comfort. More recycled materials. Style Number: 59.98025