Wide Calf Circumference (IN) 17.3 - Extra Wide Calf Circumference (IN) 18.5 Calf circumference increases by 1.18 (IN) from standard to wide and wide to extra-wide Measurements based on size 6, standard calf; for each half size larger, calf circumference increases by 0.26 (IN) Available in Regular Calf - Search Vince Camuto Shalie Heel Height (IN) 2.6 Nylon Zipper Closure Stacked Heel Pointed Toe.