The MTL Long Sky 2 is the ready-for-anything elite trail runner. Featuring an internal bootie for locked-in fit atop FloatPro Foam™, our best midsole, this shoe thrives on long runs and is designed to withstand the ever-changing elements with quick-dry construction. And when things get slippery, the Vibram® MegaGrip® outsole offers best-in-class traction. These shoes are built from the Merrell Test Lab, our product advancement incubator. All MTL shoes are rigorously tested and validated by Merrell athletes and meet our highest bar for elite performance capabilities.