North’s N-Vision 5600 Series spectacle enables prescription lenses to be inserted on the nosepiece. The protective eyewear is designed with a choice of universal comfort bridge or the new Flexi-fit nosepiece. The Rx insert attaches to the Flexi-fit nosepiece version only. A high base, panoramic aspherical lens offers a wide, unobstructed field of view.North Safety Products, Cranston, RI.