Calf measures 40cm diameter with an extra 5cm stretch. Black. 100% Leather upper Leather Sock Padded inner for extra comfort. The Lungo knee high boot brings effortless chic to your everyday style. Hand crafted from soft tumbled leathers with a 3/4 inside zip and simple pewter stud detail, combined with padded inners and flexi sole for extra comfort, Lungo makes a great winter staple. Wipe Clean Only Leather upper, leather and textile lining, leather sock, synthetic sole.