A stylish pair of rectangular framed sunnies are a chic go-to this coming summer season. Style: Rectangle. Frame Material: Acetate. Lens Material: Polyamide. Frame Color: Black, Black/White, Yellow, Tortoise, White. 100% UV Protection. Imported Proposition 65 is a California regulation that requires special warnings to be presented to customers if a product contains certain quantities of chemicals or toxicants known to the State of California to cause cancer, birth defects, or other reproductive harm.