Rhonda Thinsert Sunglasses by Barton Perreira. Color: Gold / Heroine Chic / Citron (AR), Gold / Jamrock Tortoise / Mint (AR), Rose Gold / Tusk / Rose (AR), Size: 50-20-143. Meticulously crafted by hand in Japan, a single pair of Barton Perreira frames is a real work-of-art with exquisite details and stunning silhouettes. Every facet and every angle of Barton Perreira glasses is brought to life with virtuosity and precision. Made from the premium-grade Japanese acetate and titanium, they fit like a tailored suit. In addition, the frames are wired with an adjustable foundation to align perfectly with the wearers face, while maintaining its shape.