From FRANKIE4, the Melrose Knit Booties feature:  Knit fabric upper  Pull on construction Fabric lining  Sole Hero® Footbed. Podiatrist-designed with built-in heel, arch, and forefoot support Sole Saver Pack®. Customizes your fit to regular, wide, or narrow. Features a full-length footbed, a half-length footbed, and forefoot cushions for tailored comfort Rubber outsole  Approx. 2.76" heel height  Approx. 0.35" platform height  Approx. 7.28" shaft height  Approx. 9.84" shaft circumference  Imported