These Belstaff Speedmaster sunglasses feature a robust construction crafted from high-grade Mazzucchelli and Japanese acetate, which is meticulously hand-polished for a superior finish. The design incorporates durable components such as beta titanium and features seven hinges for enhanced longevity and secure fitting. Equipped with Carl Zeiss and Japanese lenses, these unisex frames provide complete visual protection. Ideal for daily wear or high-speed activities, they merge classic aesthetics with high-performance engineering.