Tree Tribe Classic Wood Sunglasses, Polarized - Wooden Frames + Bamboo Case wood frame Composite lens Polarized Lens width: 53 millimeters POLARIZED LENSES - Provide crystal clear vision with UV400 protection and a scratch resistant coating. 53mm lens. UNIQUE WOODEN FRAMES - Crafted with 100% real wooden frames, so every pair is different, and has a unique wooden vibe. CLASSIC NATURAL STYLE - Classic unisex style looks good on everyone. BAMBOO CASE AND MICROFIBER POUCH - Includes a bamboo tube case and microfiber cloth pouch to protect and clean your glasses. WE PLANT TREES - On every sale, we plant 10 trees. Tree Tribe is all about the Earth and coming together as a community. We're partnered with non-profit tree planting organizations to help us in our mission of improving the health of the planet.