The Leightning series steel-wire construction provides high performance and robust durability. These earmuffs stand up to daily use and abuse without compromising comfort. Howard Leight has optimized the Leightning series to deliver the highest level of comfort available, featuring an exclusive padded foam headband and super-soft ear cushions that eliminate that squeezing pressure on the head. The Leightning series also features Bilsom Technologys patented Air Flow Control technology for optimal attenuation across all frequencies and snap-in ear cushions for easy maintenance.Features : Telescopic Height Adjustment Robust Steel Headband Snap-in Ear Cushions