FUNCTION BASIC Helmet set: Universal helmet set The FUNCTION Basic helmet set is ideal as an entry-level model for home use. This helmet is equipped with a durable nylon mesh visor and ventilated by slits, making it very comfortable and cool to wear. Fitted with ear protection with an insulation rating of SNR 27 and 6-point interior fittings which make it easy to adjust to your head. Pin-lock closure makes for easy adjustment of the headband. The light transmission of this visor is 55%. This helmet set has a rain channel. FUNCTION Basic helmet set details: Helmet shell material: HPDE Sweatband material: technical fabric Ear protection: SNR 27 (H: 29, M: 26, L: 19) Safety requirements: EN 352, EN 397, EN 1731 Technical details Insulating value 27 dB H value 29 dB M value 26 dB L value 19 dB Product feature Long service life Balance Normal Functionality Normal Interior 6-Point Face protection Nylon mesh Ventilation unit Adjustable Light transmission 55 Ratchet adjustment N/A Ventilation openings Yes, not adjustable