The Womens Montrail Rogue Racer Trail Running Shoes are an ultra-lightweight racing flat designed for trail runners who desire low profile performance. As you power down the trail, a breathable mesh upper aids in keeping your feet cool. Montrail runner features a combined external TPU shank and Trail Shield for support, traction and protection. The micro three-point lug design on the Rogue Racer"s Gryptonite outsole provides the multi-directional traction you need to keep you on your feet on rougher terrains, while remaining extremely lightweight.