Light, fast and stable, these trail running shoes are built for speed on technical trails through rough terrain. Sock-like construction hugs the foot for a supportive feel, and a Boa Closure System offers a personalized fit. The responsive midsole returns energy with every step to help you conquer steep mountain trails.Abrasion-resistant textile upper. Responsive Boost midsole; Molded sockliner. Sock-like construction hugs the foot.