On Running's Cloudmonster 1 pairs maximal CloudTec cushioning with a Speedboard for a springy, forward-rolling ride. Designed for high-energy runs and daily training, it delivers noticeable rebound and comfort. Key attributes: Glacier | Alloy | Polyester | CloudTec cushioning for soft landings | Speedboard for spring and propulsion | Helion foam for impact absorption | Rubber outsole for traction | Front lace-up fastening | Hidden eyelets | Low-cut padded collar | Alloy-colored On Running lettering at side | On logos at toe, back and side | Low-cut silhouette | Dimensions & fit: Heel-to-toe drop: 8 mm | Weight: 278.1 g | Size corresponds to the Italian size chart. | Composition & care: 100% Polyester | Helion foam | Rubber (outsole)