Under armour micro limitless tr nylon runners mens these under armour micro limitless tr nylon runners are designed with a one piece bootie style construction with a lace fastening front a padded ankle collar and tongue that combine for a comfortable fit along with a breathable mesh upper that allows your feet to stay cool and dry when running the synthetic overlays allow for foot support while the moulded foam midsole allows cushioning under foot complete with rubber tread to the sole t