Full Brim SecureFit(TM) Full Brim Hard Hat, Type 1, Class E, Type 1, Class G, Ratchet (4-Point)Mfr #: H 801SFR UV 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