VIONIC. 10011186 SLT. WOMENS LUCIA TOE POST SANDAL. SLATE GREY. With soft Napa leather straps in a variety of rhinestone and snake-print color options Lucia will make you want several pairs. Manmade upper with microfiber-covered footbed. Lightweight flexible EVA midsole absorbs shock reducing stress on feet ankles and knees. Durable rubber outsole with a patterned tread provides traction on a variety of surfaces.