Kimoa Iconic Square sunglasses 🕶️ style Sidney Night with a black square Bio-acetate frame and a Kimoa logo in light low relief in green Kimoa on both arms. Black polarized lenses. Bio-acetate is a biodegradable material, cellulose is a natural polymer that forms the backbone of the whole plant kingdom. The traditional plasticizer has been replaced by a plant-based plasticizer, making a bioplastic with a considerable bio-based content.