The Altra Men's Lone Peak 9+ GTX Trail Running Shoes are built to keep adventures moving no matter the conditions. A waterproof GORE-TEX Invisible Fit upper delivers breathable protection while maintaining a lightweight and flexible feel on the trail. Underfoot, an Altra EGO(TM) midsole provides a slightly cushioned yet connected ride for confident movement across uneven terrain. A Vibram Megagrip outsole adds legendary traction for wet and dry surfaces alike, helping maintain control mile after mile. With zero drop construction and the Original FootShape(TM) fit, this trail icon gives toes room to move naturally while staying protected and ready for any forecast.