- Flat knee high boots with chunky sole - Handcrafted in Portugal - Leather exterior (tannery: Italy) - Leather lining - Zip on inner side - Notched rubber sole - Heel height: 4.2 cm - Sole thickness (front): 2.5 cm This Espresso leather features magnificent color variations. From the very first wear, the color nuances will evolve to give your shoes a unique look. Caution: we strongly advise against applying cleansing milk to this leather, as it may cause the color nuances to fade. Calf circumference (at widest point) and boot height (at back) : Size 35 - Calf: 35.4 cm / Height: 34.1 cm Size 36 - Calf: 36.1 cm / Height: 34.9 cm Size 37 - Calf: 36.8 cm / Height: 35.7 cm Size 38 - Calf: 37.5 cm / Height: 36.5 cm Size 39 - Calf: 38.2 cm / Height: 37.3 cm Size 40 - Calf: 38.9 cm / Height: 38.1 cm Size 41 - Calf: 39.6 cm / Height: 38.9 cm Size 42 - Calf: 40.3 cm / Height: 39.7 cm