Aerosoles With Pride Wide Calf Boot Product Description Featuring Extended Calf technology (double zipper). Dual zipper expands calf width by an additional 2 inches once the second zipper is opened up. Traditional styling and superior comfort are the hallmarks of this must-have riding boot. A rounded toe contoured shape 1 Inch heel and a wraparound ankle strap with buckle define the look. A supple rubber sole with unique diamond patterns offers you the best of Aerosoles comfort and support. Heel Height: 1 Inch Shaft Height: 16 2/3 Inch (Size 8) Circumference: 15 1/2 Inch -17 1/2 Inch (size 8) Fit: True to Size Insole: Man-Made Suede Outsole: Rubber Upper: Man-Made