The adidas UltraBoost Guard is a rugged iteration of the innovative runner optimized for the trail. Arrived in November 2019, this version's black Primeknit upper is teamed with a Three-Stripes midfoot saddle connected to the laces and a red Fitcounter heel for stability. A synthetic mudguard with grey stripes sheds water. Atop an upgraded Continental Rubber outsole, the matching Boost midsole is defined by multilingual branding.