Tough shield for the tough jobs you do The Uvex Bionic Shield Replacement Lens are made to suit your rugged jobs. Your ideal partner to protect you from all the harmful pollutants, chemical fumes, dust particles or smoke in any other harmful industrial pollutant. Easy and Comfortable Long hours of work and putting the shield on for such a long time is very comfortable. However, when it is the Uvex S8560 Bionic Shield Replacement Lens, you do not have to worry about it. The shield is lightweight and extremely comfortable and hence, you can wear it for as long as you want.