suede lace-up derby shoes suede lace-up derby shoes from Zegna featuring navy blue, calf suede, front lace-up fastening, round toe and flat rubber sole. Composition Sole: Rubber 100% Outer: Calf Suede 100% Lining: Calf Leather 100% SIZE & FIT Measurement HEEL 1.6 in(4 cm) Sole height 0.8 in(2 cm)