VeriShield™ 100 Series Passive Earmuffs » Large dimension range: Comfortably fits a wide range of head sizes. 17% more adjustable than earlier versions. » Wide cup opening: Ideal for workers with larger ears, or who wear hearing aids. Opening area of the cup increased by 16% over earlier versions. » Lightweight cushioned headband: Steel-wire construction with padded headband and precision micro adjustments designed for just the right fit around the ear. » Memory foam ear cushions: New unique memory foam that combines denser and softer foam than previous models, for greater comfort and attenuation. Reduces squeezing pressure on the head and enhances comfort. » Air Flow Control Technology.