All sunglasses are hand made in Japan. The quality of 'Made in Japan' eye wear is now aligned with the more commonly known 'Made in Italy' or 'Made in France' eye wear found throughout the world. The materials we use are all of highest quality, made with either the best acetate or metals. Also, all of our lenses are UV 400. Another selling point we have is all the designs this season are made so you can take the lenses out to use the frames as eye glasses (Zero/Maria Cornejo's designs are none detachable) . This is usually not possible with sunglasses of this quality.