In the sun or in the rain. From asphalt to summits. Designed for road and trail to meet, the Challenger 7 GTX has been completely redesigned. Combining a simplified mesh upper with new soft foam, the sole height has been increased for a more comfortable feel. GORE-TEX INVISIBLE FIT technology in recycled material provides better protection in bad weather. Inspired by gravel tyres, we placed smaller, tightly spaced lugs in the center, and larger, more aggressive lugs on the perimeter, to improve grip on rough terrain.