Birkenstock Women's Gizeh Platform Knotted Black Birko-Flor&iquest; Sandal Cork^Leather^Suede rubber-sole sole Birkenstock&reg; Size Chart Please be advised that the Birkenstock&#174; Narrow width accommodates both traditional narrow and medium widths. Click here for more information about Birkenstock's widths. Be bold and break the mold in this gorgeous Gizeh Platform! This style is part of the Papillio Collection by Birkenstock&reg;. Easy care Birko-Flor&trade; upper is made of acrylic and polyamide felt fibers with a leather-like texture on top and a soft fabric underneath against the skin. The suede lined, contoured footbed will mold to the shape of your foot creating a custom footbed that supports and cradles you each and every step. Raised toe bar is designed to encourage the natural gripping motion of your feet, exercising your legs and aiding circulatio