Model [ MTE573B3]New Balance 573 - Grey - Men's Best Values FeaturedThis rugged and durable trail running shoe features N-FUSE® technology to provide you with superior cushioning for all outdoor activities, and the Ndurance® outsole gives you traction everywhere from your favorite running trail to the treadmill at the gym. Suitable for those with a neutral running gait. Supportive Upper Breathable Mesh Ultra Soft Comfort Insert All Terrain Tread