Designed for both road and trail, the new Challenger 7 has been completely redesigned. Combining a simplified mesh upper with a new soft foam, we've increased the stack height for a more comfortable feel and added exclusive rubber to the bottom unit, along with a redesigned outsole for improved all-terrain traction. Inspired by gravel tires, we've placed smaller, closely spaced knobs in the center and larger, more aggressive knobs around the perimeter to enhance grip on uneven terrain.