Patent leather. Patent leather shoes with straps. The Charol model is an all-time classic with Italian design. Made of blossom leather treated with lacquer and linseed oil, which gives it that patent finish that makes it so special. It's the perfect choice for any event that requires an elegant and, why not, different look. Leather sole with ultra-reinforced heel. Trick: rubbing with a dry cloth and then with a polishing sponge will revive the original shine.