Muk Luks Women's Darla Winter Boot 100% Polyurethane Faux Leather/Acrylic/Polyester Faux Fur/Thermoplastic Rubber Imported Synthetic sole Shaft measures approximately 15" from arch Heel measures approximately 1.25" Boot opening measures approximately 16" around Knee-high boot in scrunched-slouch look featuring decorative buckled strap at calf and marled knit sock cuff Stacked-look low heel Full-length instep zipper