To keep 'em off balance, you got to have balance. Flightwire technology from the Luka 1 helps provide the stability and supportive containment you need to stay in control.Propulsive Power to Keep You MovingThis Luka's got Air. We added a snappy and responsive Air Zoom unit to the forefoot of this shoe, helping give you a quick-off-the-ground sensation.Comfort to Keep You in the GameFull-length Cushlon foam underfoot makes for a comfortable ride. Add in a flexible upper and you've got shoes that stay comfortable even when you're making hard jab steps and quick cuts.The heart beneath the tongue reflects a tribute to his daughter that Luka draws on all his shoes.A compass on the outsole nods to how Luka plays on court.