Description: The New Balance 573 trail running shoe is constructed with a synthetic/mesh upper which provides lightweight comfort and support. Ghillie lacing system provides a custom, supportive fit. IMEVA (injection-molded EVA foam) midsole provides firm yet flexible cushioning. The N-FUSE® heel joins together foam of two different densities. The top foam is less dense for soft cushioning, while the denser bottom foam provides support and compression set resistance. The AT Tread® all-terrain outsole combines a running and trail lug configuration for on and off-road use. Aggressive lugged outsole gives maximum traction for off-road activities. Wt. 8.9 oz.