Rain or shine. Street to summit. Built at the intersection of road and trail, the Hoka Challenger 7 GTX has been completely reimagined from the ground up. Combining a simplified mesh upper with a soft new foam, the stack height was increased for a plusher feel and added Gore-Tex Invisible Fit with recycled content product technology for enhanced protection in inclement weather. Inspired by gravel tires, smaller, tightly spaced lugs are cued up in center and larger, more aggressive lugs at the perimeter designed for improved traction on uneven terrain. Engineered mesh Gore-Tex Invisible Fit with recycled content Compression molded EVA midsole Durabrasion rubber outsole 4mm lugs Technical Features Drop: 5 mm Terrain: Trail Cushion: Plush Stability: Neutral Weight 198 g / shoe Size and Fit Last Width: Regular