IDUNA SUN Sunglasses by Gotti. Color: Ash, Sand, Ruby, Cliff, Teal, Blush, Size: 52-22, Material: 3D Sintered, Collection: Gtti Dimension.. The sunglass model IDUNA SUN is a rounded modern sleek design. The frame is lightweight and quite durable due to its composition as a 3D printed polyamide, which bears a matte finish, rendering it with understated grace. Tinted lenses provide sufficient protection from sunlight, while Swiss craftsmanship assures comfort and quality. This model is intended for people who appreciate minimalist style with practical functionality.