Leena is a casual slip-on athleisure walking shoe built for all day comfort. Features Fusion4 technology which represents the four ways the foot finds its fit: upwards| to the sides| diagonally and downwards. Superior fit is achieved through a dynamically flexible HiFlex upper that stretches in all the right places and a Dynergy Sole that varies in the way it yields to pressure and motion in the forefoot and heel. The result is superb comfort without fatigue. The latex padded insole is easily removable to accommodate custom orthotics.