On Cloudnova X blends gym-ready technology with street-ready style. Built around full-length CloudTec® cushioning and dual-density Helion™ superfoam, it delivers a responsive, stable ride for training and everyday wear. Key attributes: Black | Eclipse | Spacer mesh | Full-length CloudTec® cushioning | Dual-density Helion™ superfoam for comfort and stability | Breathable upper | Mid stability | Smooth gym-to-street transition | X-shaped Speedboard® for forefoot flexibility | Standard lacing with integrated eyelets | Heel clip for improved heel hold | Grippy rubber outsole | Minimalist, modern silhouette | Panelled engineered upper | Reinforced toe cap | Dimensions & fit: Weight: 315.7 g (per shoe) | Heel-to-toe drop: 15 mm | True to size | Composition & care: Upper: Spacer/engineered mesh | Midsole: Helion™ superfoam (dual-density) with CloudTec® elements | Outsole: Rubber