Pyramex Ridgeline vented cap helmet with vent holes in top of hard hat help keep you cool. Abs material provides strong, yet ultra-light protection. Low profile design offers a low center of gravity for better balance. Features: - ABS material: strong, yet ultra-light for seemingly weightless protection - Low profile design: offers a low center of gravity for better balance - rear padded suspension: provides additional level of comfort on the wearers' Neck - 4 position harness points: allows you to move the harness forward, backward, up or down - allowing for the most optimal position for ultimate comfort - Replaceable sweat band: padded fabric and polyurethane foam for all day wear - vented pressure pad: keeps the straps in place providing an additional level of comfort - Easy to grasp knob: adjusts the suspension from 6 1/2" To 8" - swinging hinge points: allows you to find the most comfortable position on the back of your head specifications: - General dimensions: 11.02" X 8.66" X 5.98" - Shell thickness: 0.08" - 0.16" - Weight: 12.63 oz - Color: White.