Returning for its sixth iteration, the Challenger ATR 6 furthers its reputation for versatility. As itsname suggests, this adaptable, all-terrain shoe defies convention - performing light on the trailand smooth on the street, thanks to its midsole geometry and outsole construction. Dynamicallydesigned for versatile traction, its distinctive outsole has zonal construction to optimize grip andweight. Developed with broad, closely spaced zonal lugs, the Challenger ATR 6’s outsoledelivers smooth transitions from one surface to another. This season’s iteration utilizes recycled UnifiREPREVE® yarn derived from post-consumer waste plastic. HOKA Women\'s Challenger Atr 6 Trail Running Shoes in Vallarta Blue/Atlantis, Size 4