Its grippy. Its light. And its ready to get rowdy. This is trail running in the Timp 5. Altra built it with the same comfort you love but dropped a few ounces. With a lighter weight and grippier outsole, its ready for a full day of a full send. A new grippy outsole gives you the confidence to unlock the magic of rowdy terrain. According to Vibram, the Vibram Megagrip outsole offers unparalleled grip on both wet and dry surfaces. Stay comfortable on the toughest of trails with an updated Altra EGO MAX midsole foam compound. Its designed for light and luxurious performance with a little extra bounce and added durability. Keep moving the way you were designed to. The Timp 5 gives you a roomy toe box with plenty of room for your toes to move freely, and zero drop, with a secure midfoot so you can make dust clouds. Jump rocks. Run forever.