Hoka One One CHALLENGER 8 GTX pairs GORE-TEX waterproofing with HOKA cushioning for reliable performance across trails and wet conditions. Built with an engineered mesh upper and a profiled rubber sole, it’s designed for all‑terrain running and trekking. Key attributes: Gray | Engineered mesh | Waterproof (GORE‑TEX Invisible Fit membrane) | Breathable upper | Cushioned midsole for shock absorption | All‑terrain traction with multi‑directional lugs | Lace‑up closure | Removable cushioned insole | Heel pull tab for easy entry | Reflective details | Rounded toe | Dynamic silhouette | Geometric mesh pattern | 3D screen‑printed toe cap | Distinctive HOKA logo | Dimensions & fit: Sole height at highest point: 5.5 cm | Composition & care: Upper: Engineered textile mesh and synthetic reinforcements | Membrane: GORE‑TEX Invisible Fit | Lining: Textile | Midsole: Compression‑molded EVA (CMEVA) | Outsole: Durabrasion rubber with multi‑directional lugs