David Clark, Model 27/27S Hearing Protector p/n 18220G-05

 The Over-the-Head style Model 27 hearing protector combines comfort, durability and quality construction with superior low frequency noise attenuation Adjustable headset and stirrup assembly assures uniform headband pressure for a personalized fit and all day comfort Weather-resistant, soft foam head pad with breathable, ribbed design for eliminates 'hot spots' provides added comfort Soft, foam-filled ear seals are easily replaceable Ear cups made of high-impact ABS with patented rib construction for added toughness Work-ready, rugged design stands up to the most demanding work environments Certified Noise Reduction Rating (NRR): 22 dB 1123 This item qualifies for FREE DOMESTIC SHIPPING with tracking number.