These On Running black sneakers feature a sleek, minimalist design with a monochromatic black upper and a classic low-top silhouette. Breathable mesh upper with synthetic overlays for structural support Breathable and moisture-wicking textile lining for healthy in-shoe climate Removable, dual density insole for cushioning and support CloudTec cushioning technology active only during the foot strike Lightweight and flexible CloudTec sole unit made from Zero-Gravity foam