beneunder Slimline Light sunglasses Slimline light- Ultra-lightweight Foldable Sunglasses feature a lightweight design with thin metal and patented INTG-FOLD folding; the folded temples are concealed at only 18mm thick, and the entire lens weighs about 22g. The durability of the temples has been tested 10,000 times. The lenses are endowed with the advanced RAYTURN filter technology, which provides UV400 protection and multi-band light reduction to maintain clear vision in the scorching sun. Materials : Frame: Super Lightweight Metal Lenses: HD Nylon Polarized Lenses never worn. Original price:$79