From Ryka, the Embrace Women's Sporty Sneaker Ankle Booties feature: Synthetic upper with stretch gore RYKÄREPEL: Water and mud-repellant specially treated to help shoes stay clean and dry Padded collar Inside zipper with front pull tab for easy on/off Fabric lining Anatomical insole with extra arch and heel support with partially recycled EVA RE-ZORB® LITE responsive cushioning for lightweight shock absorption and impact protection.  Sticky rubber outsole with tread grooves with extra traction and raised sidewalls for extra support Approx. 4.45" shaft height Approx. 10.15" standard shaft circumference Approx. 1" heel height Weight: 254 g/9.0 oz per shoe Heel-to-Toe Drop: 11.5mm Imported.