Please click for the El Naturalista size chart. Get lasting comfort in the Nido N5440 ankle boot from El Naturalista. Leather and suede upper with a round toe. Medial side zipper for an easy on-and-off. Soft leather and microfiber lining. Removable comfort insole, specially cushioned to absorb harsh impacts to the heel. Durable recycled rubber outsole. Imported. Measurements: Weight: 1 lb Circumference: 11 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.