Duduma Uv400 Protection Polarized Rectangle Sports Sunglasses for Cycling Running Baseball Fishing Tr603 Unbreakable Frame UNIQUE DESIGN-Combining the best of performance eyewear with versatile style, the Duduma Sunglasses have a clean, lightweight design and ventilation ideal for running, training, and beyond. UNBREAKABLE FRAME-Bendable frames are made of a flexible composite material. They are unbreakable and will return to the original shape even after being bent. HD POLARIZED LENS-Duduma HD Polarized lenses filter out 99% of reflected glare without the haze and optical distortion that can come with polarized lenses made with conventional manufacturing techniques. ULTRALIGHT-The extreme lightness is the result of revolutionary superlight materialsThe extreme lightness of Duduma sunglasses is the result of a combination of advanced design technology and revolutionary, exclusive materials. LIFETIME WARRANTY & 30 DAY MONEY BACK GUARANTEE-Duduma provides lifetime after sale service for all Duduma sunglasses. Customers can return or get refunded for any reason. You have no risk to try.