From Vionic, the Bethany Leather Stacked Heel Booties feature: Leather upper Pull on construction Synthetic lining Built-in VIO MOTION Technology footbed with contoured arch support, shock-absorbing cushioning, deep heel cup to provide stability, & forefoot flexibility for all-day wear Approx. 2.75" boot shaft height Approx. 8.6" boot leg circumference Approx. 0.25" platform height Approx. 2.25" heel height Imported.