The Under Armour Micro G Impulse run­ning shoe pro­vides an ultra light layer of mesh upper that allows air to flow freely through­out the shoe while keep­ing you light on your feet. Under Armour’s exclu­sive Micro G foam cush­ion­ing pro­vides a light and respon­sive feel while the Ortholite sock liner forms to your heel for a cus­tomized one-of-a-kind fit.