From the company that brought you the Edge, a best selling safety eyewear style with over 5,000,000 pair sold, North now introduces the N-Vision 5600 Series. The N-Vision 5600 Series was created with the same technology used in aerospace and automotive design reaching outstanding results. Features and benefits include modern ergonomic design for comfort and fit,easy lens replacement system,frame made of new Elasto LT chemical resistant material, comfortable straight and curved temple ends supplied with all N-Vision 5600 Series eyewear, and also lenses are protected with North special coating.