Durable 4-pt. nylon replacement suspension fits Dyanmic® 280-HP542R, 280-HP642R, 280-HP842R Hard Hats• Suspension for 280-HP542R 280-HP542R, 280-HP642R, 280-HP842R Hard Hats• 4-point quick release suspension with dual position height adjustment ensures a proper fit• Strong double-layer woven nylon straps provide durability and secure fit for all day wear• Inner suspension includes comfortable padding for above the brow line, crown and back of head• Rugged non-slip adjustable SURE-LOCK wheel ratchet ensures proper suspension performance and effortless fit for all head sizes