The Cloud X 4 AD trainers from ON are designed for versatility, offering dynamic performance and durability. The newly engineered mesh upper provides a lightweight and breathable feel, perfect for everything from daily commutes to HIIT cardio. Featuring an updated heel fit and a fork-shaped Speedboard®, these trainers increase flexibility for a comfortable wear. They are light, cool, and breathable with a mesh upper, providing comfort and support with CloudTec cushioning. Raised collar edges and a wide base ensure top stability.