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. 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. Robust Construction, PPE Integration, and Air Flow Control Technology.