We chose a soft and flexible leather for this high heel boot. The leather is flexible enough to adjust to the leg, but still has enough tension to shape the leg into the form that twists necks. The zipper goes over the entire bootleg, so you don't have to lace them every time. It is easy to get in and out. These boots are a classic: sexy and timeless. Your legs are as individual as you are, so we recommend to order these boots made-to-measure (up to size 47 and in other colors and materials). So the boot fits perfectly on calf and thigh.