La Canadienne Women's Karine Knee-High Boot 100% Leather Synthetic sole Shaft measures approximately 16.25" from arch Heel measures approximately 3.25" Platform measures approximately 0.5" Boot opening measures approximately 14" around Soft, antibacterial and wicking technical microfiber lining Cushioning memory foam (3mm) insole Soft, antibacterial, wicking technical microfiber lining