THE KAHLO 3 SUN Sunglasses by Etnia Barcelona. Color: Blue, Size: 45-27-147. Challenging everyone to express themselves through their style, Etnia Barcelona creates one-of-a-kind sunglasses that will definitely appeal to your creative side. Each pair is about bold colors and intricate details, and the popular Kahlo 3 Sun made of 100% natural acetate and fitted with premium quality mineral lenses is no exception. The futuristic design of these round sunnies is bursting with color, providing a stunning and fashionable look that won’t go unnoticed.