Naturalizer Women's Rayne Boot 100% Fabric Synthetic sole Shaft measures approximately 15" from arch Heel measures approximately 1 1/4" Platform measures approximately 1/2" Boot opening measures approximately 16" around Heel Height: 1 1/4" Fit: This style tends to run narrow. For an accurate fit we recommend purchasing a 1/2 size larger than you typically purchase. For example, if you normally purchase a size 7, we recommend purchasing a size 7 1/2.