Speedglas 9100, 9100 Air, 9100 FX & 9100 FX Air Head Harness

Complete head harness to suit the 3M™ Speedglas™ Welding Helmet 9100 Series (part number 533000). Comfortable, fully-adjustable head harness Smooth ratchet mechanism for precision tightening Head gear features two adjustable crown straps, which provides better stability, balance and weight distribution Headband has snag resistant knobs for adjusting helmet position while on your head Suits the Speedglas™ Welding Helmet 9100, 9100 Air, 9100 FX & 9100 FX Air Not suitable for the Speedglas 9100 MP. The 3M Speedglas Welding Helmet Series 9100 features a highly adjustable, comfortable head harness. The outside of the human head is lined with nerve-endings, arteries, and acupressure points; applying pressure to some of these spots actually makes a person feel fatigued. The head harness specifically avoids these vulnerable areas. It provides multiple adjustment combinations so you can "tailor" the helmet to fit your personal preferences and comfort setting. Less pressure - and a perfectly-adjusted, personal fit - means more comfort, all day long.