The Pro Mark Helmet System is designed to offer premium protection to your most premium asset your head. The hard hat features a lightweight ABS thermoplastic shell and a six-point ratchet-style suspension system for shock absorption and overall comfort. For hearing protection, weve used our NRR 25 earmuffs to help block out tool and engine sound. The visor is a durable steel mesh full-face screen, designed to protect your face from flying debris. And a built-in rain gutter directs rain away from your face during inclement weather.