Sole StretchThe Ortho Active Sole Stretch provides targeted stretching to alleviate plantar fasciitis during a low load prolonged stretch. The amount of stretch for both the ankle and metatarsal joints is independently adjustable to suit each persons needs. The soft design provides additional comfort while at rest Size Womens Mens Calf Circumference S 5 8 6 9 15 M 9 11 7 10 11 17 L 12 14 11 14 13 19 XL 15 17 17 24