HIIT, mountain climbers, squat jumps? No problem. Here's an ultra-flexible training shoe built for feel-good workouts. The X-shaped Speedboard® provides forefoot flexibility for multi-lateral movements. The Helion™ superfoam midsole delivers cushioning and soft landings, with extra padding in the heel for enhanced comfort. A midfoot cage and star lacing system ensure lateral stability and a secure fit. The breathable mesh upper, made with recycled polyester, keeps feet cool and fresh. Key Features: Weight: 226g. X-shaped Speedboard® for forefoot flex and versatility. Helion™ superfoam midsole for comfort and soft landings. Midfoot cage provides extra support and stability. Excellent heel hold during multilateral movements. Breathable mesh upper. Plush materials in the heel and tongue for enhanced comfort. Rubber outsole for traction during side-to-side movements. Materials: Upper Unit: recycled polyester. Bottom Unit: Midsole: Helion. Outsole: Rubber. Speedboard: Nylon 6. Technology: CloudTec ®️. Details: Lacing: Star. Heel to toe drop: 7mm. The versatile On Cloud X 4 in GlacierStone is designed for anything you can throw at it and features a stylish look at home on the streets. It also features improved padding under the heel, working with the cloudtech pods, and Helion superfoam to give excellent comfort. Lateral stability comes from a midfoot cage, enhanced by the star lacing system that wraps the foot securely.