Acetate is an environmentally friendly alternative which are made using a bio-based material that derives from the fibres in wood and cotton pulp, to make a compound called cellulose acetate which is a plant-based material, hence to conventional plastics made from petroleum.
One of the best things about acetate glasses is that acetate is a hypoallergenic material, so it unlikely to cause any allergic reactions. You can comfortably wear these frames all day, and they are unlikely to irritate or react with your skin.
Acetate is much more durable due to being more flexible which helps your frames last longer and can easily change lenses to suit prescriptions.
https://artemoda.com.au/collections/acetate-sunglasses