Four-point webbed-design ratchet suspension provides premium protection and all-day wearing comfort. Large, ergonomic adjustment knob simplifies getting the perfect fit. Two-point nylon crown straps ensure proper protective performance. Perforated vinyl sweatband keeps perspiration out of the wearer's eyes. Safety Headgear Accessory Type: Suspension System; For Use With: MSA V-Gard? Helmets and Caps; Style: 4-Point Fas-Trac? Ratchet; Material(s): Nylon/Vinyl.