The Callista features: The collection is lined with a combination of chrome-free leather linings and 100% recycled textile linings with Aegis® Microbe Shield odor control Leather uppers Chrome-free leather covered, removable EVA footbed with memory foam and Dansko Natural Arch® technology for added support Rubber outsole for long lasting wear Office Wardrobe, Perfect Heels, Leather Cover, The Collection, Perfect Dress, Mary Janes, Memory Foam, Arch, Dress Shoes