Gabor boots size UK 4.5 - US 6.5 Very comfortable knee high boots. Calf is a slim fit, with a circumference of 14.5 inches with a bit of added elastic at the top and a thin lining. Heel hight is 2.5 inches in black lacquer. Leather boot with stitched details on the shaft. The toe box is square and gives the boots a very comfortable fit. Gabor is a British luxury comfort brand of high quality footwear.