Loading, Please Wait... DressFlex Type  Dress Shoe Selection  Slim-fitting or narrow slip-on dress shoes Control Option  2 mm, 3 mm, 3.5 mm Length and Standard Cover   3/4 Length Grey Naugahyde  Sulcus Length Grey Naugahyde  Full Length Grey Naugahyde Patient Selection  Patients who require mild to moderate biomechanical control in their narrow dress shoes. Designed primarily for women. Special Features  Optional 3/4 and sulcus length.