monkeyglasses is a pioneer in the sustainable design of exclusive Danish glasses at a great price. The frames are made from cotton acetate, a special kind of plastic which consists of approximately 90% cotton fibers. This gives them their signature wooden look and feel. The material is extremely strong and easy to shape. The raw material is biodegradable. Provides 100% UV protection. Plus, each time you buy a pair of monkeyglasses, you help support Save the Orangutan that fights for the survival of the orangutan and their home the rainforests of Borneo.