SoleMani Abigail Extra Slim Calf Women's Leather Boot 12"-13" Calf Size Leather Extra Slim Calf Boot, calf size starts from 12" for size 6 and increases to 13" for size 10. This boots are also available in Slim 13" calf size for size 6 and increased as the size gets larger to 14" for a size 10. For Calf Circumference please see size chart Butter Soft Leather Rubber Stacked Sole for Non Skid Heel Height: 1.5"