The Extant is the perfect backstrap heel for all of your festive events! This sandal has a hook & loop backstrap & front strap. Naot's anatomic cork & latex footbed is wrapped in leather with a microfiber center to prevent slipping and fomrs to the shape of the foot with wear. The Avantgarde Collection features a TPR sole with a metal shank. This sole offers the look of a 2" heel without the feel.