Pyramex 4 point snap lock suspension hard hat features: – Low profile design – tested and marked for reverse donning – Shell constructed from high density polyethylene materials – rain trough on sides and back of helmet channel moisture away – soft brow pad is replaceable. Replaceable suspensions and headbands also available – Snap lock suspension features “tuck away” Adjustments for all day, hassle free wear – ratchet suspension is easy to adjust and allows the wearer to modify the fit while wearing Hard Hat – Universal accessory slots fit cap mounted ear muffs and accessories. Hats also accommodate chin straps – testing: impact, penetration, flammability, electrical insulation, marking & Humidity specifications: – Dimensions: 11″ L x 5 3/4″ H x 9″ W – Headband sizes: 6 1/2″ To 8″ – Weight: 12.70 oz – Outer shell material: high Density polyethylene – style: cap style – Suspension strap material: Nylon – Accessory slots: yes – Chin strap attachment: yes – Replacement suspension: yes – reverse donning: yes – rain trough: yes – Color: Yellow.