Description of Montrail Wildwood TR Trail Running Shoes Inspired by Portland's Wildwood Trail, where runners cover a variety of surfaces. The resulting new Montrail Wildwood TR™ combines the protection, durability and stability of a trail running shoe with the cushioning, support, and flexibility of a road running shoe. Features: 360 degree Perimeter™ stability with flexibility and cushioning. Asymmetrical midsole design enhances flexibility. Heel crash pad absorbs shock and eases foot into a neutral gait cycle. Trail Shield™ protects the foot by dispersing point pressure. Lateral flex in the outsole allows for a natural range of motion. Gryptonite™ outsole compound provides advanced traction on a variety of surfaces Weight 12.7 oz 0.36 kg