If you love the ease and comfort of slides but are ready for something more sophisticated, these Birkenstock Women's Madrid Big Buckle Sandals - Narrow may be your new favorite go-to footwear. Simple yet elegant, they have an oiled leather strap with a stylish large metal buckle that gives them the right amount of flair. As you rev up your look, you don't have to sacrifice comfort. These slides have a cork-latex footbed that is anatomically shaped, helping to comfort feet and promote foot health. The EVA outsole is flexible, durable and provides traction.