Patagonia Women's Addie Ruffle Boot 100% Leather Rubber sole Shaft measures approximately 4" from arch Heel measures approximately 1" Boot opening measures approximately 11 1/2" around 70% recycled polyurethane footbed with 100% recycled polyester for support and comfort 70% natural hevea latex outsole and heel cover adds cushioning and support 2mm steel shank provides underfoot stability Stitched outsole construction provides durability while minimizing use of solvents