Please click for the El Naturalista size chart. The El Naturalista Aqua N5355 boot offers a soft leather upper for classic style that is simply timeless. Pull-on construction with gore side panels and pull-tab at the back. Round-toe design. Leather lining. Lightly padded footbed. Rubber outsole. Block heel. Imported. Measurements: Heel Height: 2 in Weight: 15 oz Circumference: 9 1 2 in Shaft: 6 in Product measurements were taken using size 40 (US Womens 9), width M (B). Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.