*** Extra Wide width + Extra Wide Calf size*** Features JF Form Foam - Twice the thickness of a standard foam insole, with optimal rebound so the sole never flattens and you always feel supported. Material: Faux Suede Heel Height: 4.0" Shaft Height (based on size 8): 22.0" Extra Wide Calf Circumference (based on size 8): 21.2" Extra wide width has additional room across the footbed, ball of the foot and instep Measurements will vary slightly Imported