For enduring comfort on runs and errand runs, the New Balance 520v7 won't let you down. Mixing lightweight mesh for breathability and synthetics for stability and durability, the upper is finished with signature New Balance 'N' branding. It sits on a bed of EVA foam cushioning that delivers a softer more comfortable tread than previous versions. The rubber outsole feels is cut with flex grooves to allow a flexible and natural tread.