Blue Moon Bamboo By Bemucna Wood Sunglasses are handmade from 100% natural bamboo wood. The lightweight bamboo wood offers a comfortable fit that is durable and sturdy at the same time and they float! The unique stainless-steel, double-spring hinges are sturdy and designed to keep their shape year after year. The lenses are specially designed so that they are both dark and polarized, offering 100% UVA/UVB protection even in intense lighting conditions. These glasses are stylish, durable, and natural. Each pair includes a durable exquisite wooden box.