Alegria Black Shear:The one that started it all, the Alegria Classic has a combination latex and cork footbed that is designed to form to the foot. If necessary, the footbed is removable to allow space for custom orthotics, and the interior has extra depth to create a roomy fit. The outsole is engineered to reduce heel and central metatarsal pressure, and the bottom is flat to increase stability. The rocker outsole also propels you through the gait cycle, rocking you from heel to toe in a natural motion, resulting in less tired feet and body at the end of the day.