From Gianni Bini, the Irvin Stretch Ruched Velvet Block Heel Booties feature: Stretch ruched velvet upper Soft snip toe  construction Inside zipper closure Tricot fabric lining 4mm padded memory foam sock Airfit comfort technology in the heel providing extra comfort, durability and breathability Synthetic outsole Approx. 7.4" shaft height Approx. 9.4" shaft circumference Approx. 3.3" heel height Imported.