On Running CLOUD X 4 pairs Swiss engineering with responsive CloudTec cushioning to deliver a versatile trainer built for daily runs and varied training. Key attributes: Light blue | Blue | Navy | Mesh | Responsive CloudTec cushioning with energy return | Breathable upper for ventilation | Durable outsole with rubber pods for traction | Flexible outsole geometry for natural foot movement | Padded heel collar | Reinforced heel counter | Secure lacing system | Navy mesh upper with darker navy synthetic overlays | Visible light blue CloudTec pods on outsole | White On Running branding | Segmented outsole with cross-shaped central channel | Dimensions & fit: Secure heel fit; padded collar prevents slippage