La Canadienne Women's Karol Knee-High Boot 100% Suede Synthetic sole Shaft measures approximately 16" from arch Heel measures approximately 3" Boot opening measures approximately 13.5" around Waterproof Italian calf suede with elastic stretch panel shaft Soft, antibacterial, wicking technical microfiber lining 3mm memory foam insole for comfort Traction thermoplastic rubber wedge unit sole European elegance with smart, functional design elements perfect this lengthy boot.