From TOMS, the Women's Desert Wedge Plus Shimmer Twill Booties feature: Shimmer twill fabric upper Lace up closure with side zipper for easy on-and-off Padded collar Fabric lining Non-removable custom CloudBound™ foam insole for all-day comfort and support: Made with 40% eco content (20% recycled polyurethane, 10% bio-oil , 10% recycled rubber) Self wrapped wedge TPR outsole Approx. 3" shaft height Approx. 10.5" shaft circumference Approx. 2.75" heel height Imported.