The Mandy Irvine Sandals by Hush Puppies are combination of nubuck and full grain leather uppers. Drilex soft mesh linings for climate control. It's features hook and loop back closure for secure custom fit and anatomically molded EVA footbed wrapped in drilex soft microfiber. Exclusive BioBevel sole technology enhances and encourages natural gait alignment and reduces fatigue. 40mm (1.5'') molded dual density EVA wedge sole unit provides excellent cushioning, stability and reduced weight. Siped genuine rubber inserts in key areas on the sole bottom provide traction and durability. Material: Leather, mesh.