Please click for the El Naturalista size chart. Winter is slowly warming with each step in the Solar N869. Upper made of leaves leather, in which the vegetable components bring out the characteristics of the leather's organic material providing transparency, color intensity, and brightness. Contrast stitching, shearling trim, and full side zipper that allows for easy on-and-off wear. Leather and textile lining keep feet feeling breathable. Insoles are a recycled carbon compound that give added support and breathability. The exclusive Frog Shock System is a specially cushioned insole that absorbs the harsh impacts to the heel. The Comfort Last is anatomically angled. The outline adapts to the natural shape of your foot. El Naturalista uses leftover rubber that most would consider industrial waste and reutilizes it to make these original soles. Imported. Measurements: ; Heel Height: 2 1 2 in ; Weight: 1 lb 10 oz ; Circumference: 15 in ; Shaft: 17 in ; Product measurements were taken using size 39 (US Women's 8-8.5), width M (B). Please note that measurements may vary by size.