Built at the intersection of road and trail, the Challenger 7 GTX has been completely reimagined from the ground up. Combining a simplified mesh upper with a soft new foam, the stack height has been increased for a plusher feel, and an added GORE-TEX INVISIBLE FIT with recycled content product technology for enhanced protection in inclement weather. Inspired by gravel tires, the Challenger 7 GTX has smaller, tightly spaced lugs in center and larger, more aggressive lugs at the perimeter designed for improved traction on uneven terrain.