Comfy Moda Women's Winter Ice Snow Boots Cold Weather Faux Fur Full Lined Manmade Leather Jessica PLEASE SEE CAREFULLY THE SIZE AND CALF CHART BEFORE ORDERING Imported Faux Fur Rubber sole Boot opening measures approximately 13" around Super trendy boots will have you dancing all over town for both regular and big calves for you to choose . Upper: Synthetic leather; Outsole: Rubber with great traction; Lining: Faux fur; Insole: removable insole with faux fur; Zipper: Full side zipper. Temperature Rating: -25 C / -13 F Measurement by size 7: Regular width 16" circumference, 13" shaft, 1" heel, and 1 lb 2.8oz weight Measurement by size 7: Extra wide width 18" circumference ,13" shaft, 1" heel and 1 lb 3.8 oz weight