Dr. Comfort Amy Flex-OA Women's Shoe for Knee Pain - Osteoarthritis OA: Black 11 Medium/Wide (B-D) Lace Sizes Available: 5 through 34 Widths Available: Wide (C/D) and X-Wide (E/2E) These Shoes work great for a variety of foot conditions, including (but not limited to) Arthritis and Knee Pain The Amy is a part of the Dr. Comfort Flex OA Collection