Regardless if it comes to long distance running on rocky trails or a slow jog in foul weather, a healthy foot climate is what can be expected from this versatile shoe. The durable yet smooth bluesign polyester upper features a GORE-TEX membrane keep water out and the foot dry. The BOA Fit System secures a perfect upper fit with an even closure and makes taking it on and off very convenient. The high torsion and fully cushioned midsole, in combination with the ESS system, result in a stable shoe that protects from over-pronating The RB9X outsole features lugs arranged in a pattern that is designed so grip in mud, as well as on rocks.