Lenses: CR39 - Experience superior clarity with our premium lenses, offering complete 100% protection against harmful UVA and UVB rays. Frame: Elegantly crafted with handmade acetate frames and reinforced by durable stainless steel hinges for lasting quality. Size: Medium, ensuring a comfortable fit for most. As a bonus, each pair comes with a complimentary hard case, providing stylish protection for your sunglasses. Upgrade your eyewear with confidence!