Kaleos presents the Estrich C4 Sunglasses, a modern acetate-frame style with photochromic lenses that adapt automatically to changing light. Designed for everyday wear, they combine a defined rectangular profile with optical performance for clear, comfortable vision. Key attributes: Black | Nero | Acetate | Photochromic lenses (automatic light adjustment) | UV protection | Anti-reflective treatment | Rectangular frame | Clean lines | Balanced proportions | Modern, versatile silhouette | Composition & care: Acetate frame | Photochromic brown lenses