With a simple style but boasting complex technology to help you give the best performance these Adizero Tempo Halfrim Sunglasses by Adidas feature a sporty look that will keep you looking cool. With quick change lens system ensure your eyesight is at its best & innovative Decentered Vision Advantage PC Lenses these sunglasses are scratch & impact force resistant. K.D. Polarized Decentered Vision Advantage PC Lens Quick change lens system Double snap nose bridge Auto fit Grip systems Quick release hinge Ventilation system