Hoka One One CHALLENGER 8 combines trail-ready traction with a highly cushioned, chunky sole for training, running and everyday walks. It pairs breathable mesh ventilation with a shock-absorbing EVA midsole for long-lasting comfort. Key attributes: Grey | Engineered mesh | Breathable upper for ventilation | Exceptional cushioning and shock absorption | Reliable traction for mixed terrain | Lightweight construction | Durable rubber outsole | Reflective details | Sporty silhouette | High, chunky cushioned sole | Plush collar | Bold logo placement on sides, tongue and insole | Dimensions & fit: Sole height (highest point): 5 cm | Heel-to-toe drop: 8 mm | Weight: 230 g | Neutral stability | Medium width (standard) | Composition & care: Engineered mesh (upper) | Compression-molded EVA (midsole) | Rubber (outsole) | Spot clean with mild soap and water; do not machine wash or tumble dry; let air dry away from direct heat or sunlight.