Aetrex Men's Casual Walking Leather Imported The Aetrex Y700 Casual Walker was designed with the latest in style and comfort in mind. European-inspired detailing. Supportive yet supple leather upper provides total foot comfort. Lightweight, removable Aetrex orthotics and Pressure Relief System insoles provide optimum comfort. Available in three widths, Medium (C,D), Wide (E, EE), and Extra Wide (3E, 4E).