Dosuno offers adults the same versatility, flexibility and indestructible features that Nano Vista has become famous for. Dosuno also offers a “2 frames in 1” system, meaning each frame comes with a full strap made for a quick change from temples to head band. Made from Sililfex™ material, Dosuno is significantly lighter than acetate, and infinitely more flexible and durable, which makes it able to take whatever life throws at you.