Availability: 10 in stock
The Arnette Cortex 4291 sunglasses bring bold square styling and eco-conscious construction to your everyday rotation. Built from bio-acetate—a sustainable material made from up to 70% renewable resources—these frames deliver the durability and comfort Arnette is known for, with a lighter environmental footprint. The 57mm lens width and 18mm bridge offer a medium fit that works for most face shapes, while the full-rim acetate construction keeps things lightweight and secure during active wear. Prescription lenses can be added to make these your daily drivers.
Arnette has committed to sustainability since 2019, and the Cortex 4291 is part of that effort. The bio-acetate frames are derived from cellulose (cotton or wood fiber) and topped with bio-based plasticizers instead of fossil-fuel alternatives. The lenses are made from castor oil, a renewable resource. This means the frames use plant-based materials instead of petroleum-based plastics, reducing reliance on fossil fuels while maintaining the strength and flexibility you need. Even the packaging is thoughtful—the pouch is 78% recycled polyamide, and the box is fully recyclable.
Choose from several colors to match your style and functional needs. Polarized options help cut glare for water and driving. All lenses provide 100% UV protection. The square shape suits angular and oval faces, and the 140mm temples ensure a stable fit that won’t slip during movement. These are built for the street, the beach, or anywhere in between.
