AdTec Women's 10" Harness Biker Boot Black Work Boot 100% Leather Imported Synthetic sole Shaft measures approximately 9.25" from arch Heel measures approximately 3.5" Platform measures approximately 0.25 inches Boot opening measures approximately 11.25" around Full-grain leather 3/4 Goodyear Welt Construction Comfort cushioned insole 3.5" Heel w/ Heel Shank for Safety 3.5" Heel w/ Heel Shank for Safety