BURO SUN Sunglasses by Gotti. Color: Ash, Slate, Mocca, Sand, Teal, Blush, Size: 51-18, Material: 3D Bionic, Collection: Götti Dimension Bionic .. Gotti Buro Sun sunglasses redefine sunwear with their square 3D‑Bionic frames. They’re fully produced in Switzerland from a high‑performance, bio‑based polyamide made from castor beans. This sustainably sourced material offers lightness, strength, and tactile comfort, perfect for daily wear under the sun. Offered in a variety of tasteful shades to complement any look.