Fast, agile, and comfortable, the ON Cloudsurfer 2 offers plush cushioning at a light weight. Mesh upper allows breathability and support where you need it most. Antimicrobial knit covers heel, collar, and tongue lining for a clean, fresh environment. Reflective heel strap keeps you safe and visible when running in low light. High-grade EVA midsole for durable cushioning. 13 Zero-Gravity foam "clouds" are precisely placed for cushioned comfort with every step. Rebound rubber outsole with newly developed arrow pattern for increased traction. Wt. 9.7 oz.