ON Cloudsurfer Max — engineered for performance and built to last. Designed for athletes who demand comfort, durability, and responsive cushioning mile after mile.Key Features: Optimized for comfort. CloudTec Phase® is used instead of a Speedboard® – computer-optimized Clouds sequentially collapse when your foot lands, creating a smooth heel to toe transition. The engineered mesh and upper construction deliver maximum breathability and comfort. Updated tongue and eyestay designs give the shoe a sleek look and feel. Knitted tongue for comfort. Rubber pads on the outsole for grip. Next generation eyestays for comfort. Best for long-distance runs. Whether you are training for a race, hitting the gym, or living an active lifestyle, the ON Cloudsurfer Max is designed to keep you performing at your peak.