Handcrafted from plant-based bio-acetate with sharp lines and sleek proportions, our BIO-TRON acetate sunglasses are a wardrobe staple. This frame offers a striking take on the cat-eye silhouette and is designed for all-day comfort. Finished with discreet heritage metal rivet detailing on each temple. • Finished in a luxurious champagne frame with brown mono lenses. • Carefully crafted in limited batches from acetate with a luxurious touch and comfortable fit. • Fitted with premium CR-39 lenses which offer superior optical clarity, and provide 100% UVA / UVB protection. • These sunglasses can be taken to your local optometrist to have prescription lenses fitted.