The New Balance 790 running shoe is an ultra lightweight trail racing shoe built low-to-the-ground to maximize responsiveness. Synthetic and mesh upper is lightweight and supportive. ACTEVA lightweight midsole adds exceptional durability. Rock Stop shock distribution plate provides protection against rocks by minimizing pressure. N-durance® rubber compound offers maximum durability in high wear areas. AT Tread outsole combines running and trail lug configuration designed for on and off road use. Wt. 9.5 oz.