From Azalea Wang, the Shainia Boho Lace Up Back Zip Bootie Sandals feature: Synthetic upper Zipper edged side panels with whipstitch details Riveted O-ring straps Ankle wrap length adjustable lace up front Back zipper closure Hardware shaft pulls rings Synthetic lining Synthetic outsole Approx. 4" shaft height Approx. 6.3" shaft circumference Approx. 4.3" heel height Approx. 0.39" platform height Imported.