On the trail. details matter. Fast. rugged and ready for whatever wild comes your way. the updated ACG Mountain Fly 2 is here to take you to the top. Over glacial-smoothed granite and root-twisted trails. we've reinforced every step with an extended toe cap and mountain-tough rubber sidewalls. Don't worry about pushing your hardest eitherthe breathable upper helps keep you from overheating and lets you air out quickly when wet.

For extra comfort and support. a foam midsole and lightweight plate runs from the ball of your foot to the heel.
Crag-ready traction inspired by mountain bike tires is redesigned to help improve durability.
Entry is easy with a semi-gusseted tongue. plus a lace toggle for quick adjustments on the go.