NOUR classic mule: Clean and simplicity lines without additional decoration, purely using the glossiness of leather itself to present shoe last's line is the spirit we want to convey- the simplest but the hardest. NOUR classic mule: This style is made from high quality genuine leather with a comfortable leather lining. Insoles are made from vegetable tanned leather, and the color will change gradually to caramel finish with time. Upper: Italian cow leather / Lining: 100% Leather / Insole: Vegetable tanned leather / Heel height: 2.5cm / Product number: D317772-Sky Blue / Made in Taiwan Fits small to size. We recommend ordering a half size larger than typically worn. If you have any question please contact us to give you suggestion.