The On Cloud X 4 AD is a versatile cross-training shoe designed for dynamic workouts, offering a balance of cushioning and flexibility. Weighing approximately 270g for men and 220g for women, it features a 7mm drop, providing responsive support for various activities . The engineered mesh upper ensures breathability and comfort, while the fork-shaped Speedboard? enhances flexibility and a natural underfoot feel . Its updated rubber outsole with improved traction offers stability during movements, and the lightweight material provides abrasion resistance . The Cloud X 4 AD is crafted with eco-friendly materials, including recycled polyester, nylon 6 Speedboard?, and rubber, aligning with sustainable practices . While it excels in comfort and versatility, some users have noted concerns regarding durability and support for heavy lifting .