Medium - Alchemist Lux W (Bone) - Women's: To extend on the Alchemist s popularity, the Alchemist LUX is an upscale edition of the playful iconic running silhouette. The LUX upper is upholstered in a combination of soft full grain and high quality nylon that is leather lined for maximum comfort. The rich upper is mounted to a blended cork midsole with a natural gum rubber outsole.