Australia Luxe Collective Women's Cosy Tall Flat 100% Sheepskin Imported Sheep Shearling (Australia) Synthetic sole Shaft measures approximately 12.5" from arch Heel measures approximately 0.75" Platform measures approximately 0.5 inches Boot opening measures approximately 13.75" around Breathable double face sheepskin and a five-layer insole provide the ultimate in knee-high comfort.