The handcrafted wooden frames of the Earth Wood Ona Sunglasses complement their smart square shape. Organic, biodegradable, and recyclable wood gives these sunglasses a unique appearance. Moreover, the frames are non-toxic to keep your skin protected. The lenses of these sunglasses are polarized to block out damage-causing UVA and UVB rays. These lenses ensures your visibility remains clear and unaffected. Being anti-scratch and anti-fog, the lenses retain their impressive qualities. Moisture and water cannot rust the hinges as they are made from stainless steel.