Details Securefit Pressure Diffusion Technology: Flexes and self-adjusts to the size of the wearer's head. Reduces pressure and increases comfort for all day wear. Fits head sizes from 6-1/4 to 8 (50-64 cm) Optimized Comfort: With 2 levels of height adjustment. Contains a premium washable and replaceable sweatband that is made of moisture-wicking material designed to help keep workers cool and dry. 3M Uvicator Sensor: A visual cue when it's time to replace the hard hat due to UV exposure. Protection And Comfort: H-Series non-vented hats meet ANSI/ISEA Z89.1 Type 1, Class G and E requirements. Compatible: With cap-attached 3M hearing protection, communication products and other accessories. DOSH SIRIM Approved The 3M™ SecureFit™ H-Series Hard Hats with Pressure Diffusion Technology are designed to self-adjust to the wearer as the ratchet is tightened. This helps create a personalized fit and reduces the pressure on the forehead up to 30% compared to current 3M H-series hard hat suspensions. The smooth, easy turning ratchet suspension sits lows on the head to increase security and reduce pressure, helping to make the SecureFit™ H-Series a comfortable and stable hard hat option. Choose from cap or full brim style in a gloss finish. The 3M™ SecureFit™ H-Series Hard Hats provides 3M innovation in comfort while maintaining the traditional cap and full brim design that many prefer. If you wear a hard hat for a full shift, you want it to be comfortable and fit properly. 3M recognizes this and has responded by designing a suspension system that self-adjusts to the wearer as the ratchet is tightened. Chosen 9 times out of 10 over current conventional hard hats*, this suspension system flexes and self-adjusts to the size of the wearer’s head, reducing forehead pressure and increasing comfort for all-day wear. Footnote: **End-user survey conducted by 3M, November 2020 – March 2021. Participants were allowed to keep the new 3M hard hat.