Self-covered block heel. Faux croc fabrication. Sharp tapered toe shape. Straight long boot uppercut just below the knee. Inner zipper fastening. Synthetic upper, lining and outsole. Size 6 is EU 37. Step out looking extra cute, girl. The BILLINI Zadie Boots feature block heel and a sharp tapered toe shape. Style with a mini skirt for a look we're obsessed with. Calf Sizes: 5: 361mm 6: 370mm 7: 379mm 8: 388mm 9: 397mm 10: 406mm