The Primo leather loafers are crafted from ultra-soft vegetable-tanned calf leather with a natural patina, hand-treated with a washing process to achieve a vintage texture. The pair is accented by a metal buckle on the penny leather strap featuring 3D Medusa hardware. Medusa hardware slip on round toe penny strap outer composition: 100% calf leather lining: 100% goat leather sole: 100% calf leather