NFPA structural goggle system is designed to give you NFPA eye protection against flying debris, smoke, fluids, and objects that can get under a faceshield. Firefighters need this extra protection while cutting, breaking glass, performing auto extrication and overhaul. Protection that is always ready when you need it...with Cairns own patent pending retention system that allows easy donning and doffing, without adiustment, even with gloved hands.