The Merrell Agility Peak 5 GTX delivers everything serious trail runners demand in a single, lightweight package that weighs just 10.4 ounces. Whether you're grinding through an ultra marathon, competing in cross country, or training for your next trail 5K, this shoe's GORE-TEX waterproof membrane keeps your feet dry without sacrificing breathability when the weather turns nasty. The FloatPro foam midsole returns energy with every stride while Vibram MegaGrip rubber grips confidently on both wet rocks and dry singletrack, and the integrated rock plate shields your feet from sharp terrain without feeling clunky underfoot. Built with a sculpted heel cup and external sling system that locks your foot in place, these trail runners eliminate the heel slip that can derail long training sessions and race day performances.