Main material: 60% Polyurethane, 40% Dyed polyester Insole & lining: 100% Dyed goat leather Sole: 100% Dyed cow leather Sleek Leather Over-the-knee Boots, Leather Thigh High Boots With Wide Calf Fit, Thigh High Leather Heeled Boots For Wide Calves, Wide Calf Thigh High Leather Heeled Boots, Formal Knee-high Polyurethane Boots, Sleek Leather Over-the-knee Heeled Boots, Fitted Knee-high Faux Leather Boots, Fitted Calf Leather Knee-high Boots With Sculpted Heel, Formal Fitted Knee-high Boots With Leather Lining