Chanel Interlocking CC Riding Boots size 40 (10 US). Description • Chanel Tall Riding Boots • Beautiful Black Lambskin Leather Upper, Dark Brown Leather liner • Interlocking CC Logo • Round-Toes Chanel serial numbers on inside top of each shaft Size Guide Estimated item measurements Heels: 1.25" Shaft Height:19” Internal calf circumference: 13” 100% Authentic Boots show some moderate wear overall as shown in pics, creasing at instep, some light scuffs, moderate wear on soles, creasing at shaft. Overall in good condition and have recently been professionally cleaned and polished. Designed to fit over the knee though shaft height determines overall fit. I wear a size 10 and these are true to size