Minnetonka Hi Top Back Zip Boot Product Description This ankle-high back zip boot features a new square-toe shape and sole with heel-to-toe foam. Definitions Heel Shaft Height: 5 Inch (size 7) Circumference: 11 1/2 Inch (size 7) Fit: This style tends to run large. For an accurate fit we recommend purchasing a 1/2 size smaller than you typically purchase. For example if you normally purchase a size 7 1/2 we recommend purchasing a size 7.