All season. All terrain. 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. BEST FOR: All Terrain Running FEATURES: GORE-TEX bootie Unifi REPREVE® recycled yarn Gusseted mesh tongue from recycled materials Early stage Meta-Rocker Compression molded EVA midsole Vegan Toe Rand Recycled poly laces Zonal rubber 4mm lugs