UNIONBAY Kids Womens Knockvi-G2 (Little Kid/Big Kid) Synthetic Boot opening measures approximately 13" around A little bling goes a long way in this sparkling UNIONBAY&reg; Kids boot! Faux suede upper. Side-zip closure. Sparkling stones on shaft area. Man-made lining. Lightly padded footbed. Man-made outsole. Imported. Measurements: Heel Height: 1&frasl;2 in Weight: 7 oz Circumference: 10 in Shaft: 13 in Platform Height: 1&frasl;4 in Product measurements were taken using size 2 Little Kid, width M. Please note that measurements may vary by size.