Excellent noise-blocking performance and superior comfort-wear features keep the Leightning® hearing protection line a leader in maximum protection and contemporary design. Patented Air Flow Control™ technology ensures optimal attenuation across all frequencies. Robust steel construction withstands demanding use, while telescopic height adjustment ensures solid fit. Telescopic height adjustment remains fixed during use. Super-soft, snap-in ear cushions deliver superb comfort with minimal pressure on the head; and make replacement quick and easy.