NWT Olive Military Marten Combat Booties for Fall. The upper is PU .The lining is comfort multi-Spandex. The insole is cushioned PU and the outsole is slip-resistant TPR. Measurements: heel 1", the shaft height 5.5", platform is 0.4", calf circumference is 10.5" inches. perfect for autumn and winter wear over leggings, tights, jeans and with knee high socks for that perfect fall fashion look. solid color makes them easy to pair with your favorite statement scarf and cardigan! A fall must-have!