The Malaga Zip features: Upper: 100% calfskin leather Inner lining: 75% textile and 25% pig skin Sole: 100% synthetic Cushioned insole Zipper closure Heel height 4 cm (1.5"") Shaft contour 25,6 cm (10.1"") (size 37 eur/4 uk/6,5 Total shaft height 13 cm (5.1"") (size 37 eur/4 uk/6,5