Carlos by Carlos Santana Womens Hayden Synthetic Shaft measures approximately 4" from arch Boot opening measures approximately 9.75" around Get your style in check with the Hayden bootie! Textile upper. Perforated upper with side zipper. Synthetic lining. Lightly padded footbed. Stacked heel. Man-made outsole. Imported. Measurements: Heel Height: 2 in Weight: 11 oz Circumference: 9 3&frasl;4 in Shaft: 6 in Product measurements were taken using size 8, width M. Please note that measurements may vary by size.