Castañer Women's Footwear Size Chart Stay ahead of the trend wearing the chic and stunning CASTANER&trade Belky Heeled Sandals. Textile upper. Leather lining. Leather and textile insole. Adjustable buckle strap closure on the ankle. Open toe. Jute-braided wedge heel. Rubber outsole. Made in Spain. Measurements:Heel Height: 3.15 in.Platform Height: 1.2 in. Weight of footwear is based on a single item, not a pair.