Helmet for Work with Air Mesh Heat Barrier Thermal Shield Sky [DIC Plastic] SYA-CV-SFE4M-M3 Blue/Smoke

---------------------------------------------------------------------- [Usage category] For flying and falling objects/For crash protection (product that has passed national certification) [Estimated head circumference] 55.5-60cm [Weight] 390g [Interior body] M3SF (E1 one-touch chin strap, M3 mesh liner standard equipment) [Function/Performance] With rain drip prevention grooves, ventilation holes, heat barrier (heat shielding pigment kneaded) Before using the hard hat, be sure to read the included "Instructions for use of the hard hat". For safety reasons, we recommend replacing the product within 3 years of use, even if no abnormalities are detected.