• Extra-large stylish shell and wrap-around protective mask frame • High impact resistant polycarbonate window (with or without anti-fog) • Head harness with premium 370 Speed Dial™ ratchet suspension • The Speed Dial 370™ Ratcheting Head Harness features the industry's quickest, easiest and most efficient ratcheting system • All models meet or exceed ANSI Z87.1 standards + high impact resistance • CSA approved in accordance with CAN/CSA Z94.3 standards • CE approved