Precautions for helmet use

Shell Constructed Of Thermoplastic.Lner Constructed Of Expanded Polystyrene.No Helmet Can Protect The E Wearer Against All Foreseeable Impact.However,For Maximum Protection,The Helmet Must Be Of Good Fit And The Retention System Must Be Securely Fastened To Retain The Helmet.The Helmet,When Fitted And Fastened,Shall Not Be Removed Easily.The Helmet Can Be Seriously Damaged By Some Common Substances Without Damage Being Visible To The User.Apply Only Mild Detergent And Water For Cleaning Purpose.Make No Modificaiton.If The Helmet Experiences A Severe Blow,Return It To The Manufacturer For Inspection,Or Destroy It And Replace It.