From Gianni Bini, the Sharpe Stretch Lace Stiletto Over the Knee Boots feature: Synthetic stretch upper with lace flocking detail  Pointed toe construction Side zipper closure 4mm padded memory foam sock Airfit comfort technology in the heel providing extra comfort, durability and breathability Synthetic outsole Approx. 23.63" shaft height Approx. 13.39" standard calf shaft circumference Approx. 14.18" wide calf shaft circumference Approx. 12.6" narrow calf shaft circumference Approx. 3.94" heel height Imported.