Chanel Acetate Square Sunglasses in Dark Tortoise July 4, 2023 Polka Popp Chanel Acetate Square Sunglasses in Dark Tortoise Acetate Dark Tortoise. Lenses: Brown, Polarized Worn by Charlotte Casiraghi on: 4 July 2023 - Chanel Haute Couture Fall/Winter 2023/2024 show