Plenty of cushion and the perfect amount of stability for the moderate pronator, the M2 makes for a great, everyday trail shoe. At 10.8 oz, the shoe is light and has a forward flowing heel-to-toe transition, making downhills (and almost every step) feel easy. For the serious mountain runner, the shoe has a rock-plate in the front foot, helping prevent against any errant stride into a boulder, and a wide toe box to prevent against any swelling for the longer runs. If you want a stability shoe with plenty of cushion for an ultra or beyond, this is a wonderful choice.