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: White.