Fashion Thirsty Womens Knee High Lace Up Back Block Mid Low Heel Riding Boots Size Synthetic Synthetic sole Gorgeous Knee High Boots With Pretty Lace-Up Back Approx Heel Height: 2.7 Inches / 6.8 cm Approx Platform Height: 0.1 Inches / 0.3 cm Approx Boot Height: 21 Inches / 53.3 cm, Approx Boot Opening Circumference: 13 Inches / 33 cm Please Order Usual US Size But Note That This Item Will Be Labelled with Corresponding UK or EU Size - E.G. US 5 = UK 3, US 6 = UK 4, US 7 = UK 5, US 8 = UK 6, US 9 = UK 7, US 10 = UK 8 and so forth..