Challenge the trail in the versatile and all-conditions-capable Challenger ATR 6 GTX. From trail running to smooth street strides, the Challenger ATR 6 GTX is dynamically designed for traction on both, using its distinctive outsole and zonal construction to optimize grip. Why you’ll love it: The Challenger ATR 6 GTX takes you anywhere, no matter the conditions.GORE-TEX bootieUnifi REPREVE recycled yarn4mm lugsSku: 1116878BBLCFemaleAdult