Apollo is a chunky frame with flat "zero base" lenses to fuse a classic era with the current wave, subtly refining a timeless silhouette. Each pair is handmade in limited numbers to maintain precision and quality that will look great and last for years. Eco-conscious acetate frame Optical Class 1 nylon lenses for clarity and durability. 100% UVA/UVB protection Durable 5-barrel hinges with stainless steel temple cores for strength and flexibility.