Mercedes Castillo's debut collection takes inspiration from architecture and mid-century design, evident in the Katalin sandal. An asymmetrical leather ruffle ripples across the vamp to create a fresh silhouette perfect for stepping into street-style elite territory. Color(s): black. Brand: MERCEDES CASTILLO. Style Name: Mercedes Castillo Katalin Sandal (Women) (Nordstrom Exclusive). Style Number: 5331234.