3M™ Ratchet Headgear with chin protector includes high-strength thermoplastic crown protector that provides impact resistance. It can be used when extra chin protection is needed. Clear chin protector allows downward visibility. With adjustable ratchet suspension, this headgear features a unique system that allows faceshield window replacement in seconds and helps provide a precise fit and comfortable head protection.High-strength thermoplastic crown protector provides impact resistance. Can be used when extra chin protection is needed. Clear chin protector allows downward visibility. With adjustable ratchet suspension, this headgear features a unique system that allows faceshield window replacement in seconds and helps provide a precise fit and comfortable head protection. Protective eyewear should be worn under faceshields at all times and is sold separately. 3M provides reliable head and face protection products that meet regulated performance and safety requirements.