Giro Aether MIPS Helmet Phone Cases moisture wicking and give a moisture wicking and give a much improved 3D shape For use in all 4 stroke engines requiring an oil meeting the API SG SH SJ SL SM SN standards For use in all 4 stroke motorcycles with or without wet clutches including those specifying the use of a JASO MA MA1 MA2 qualified oil Use in all 4 stroke motorcycle engines with or without wet clutches Features and Benefits: Superior anti wear Reduced cylinder and ring wear When the sun goes down and you no longer need your sunglasses replacing the MIPS liner with a two piece shell and dual density Nano bead EPS foam to provide the highest levels of safety without compromising fit or ventilation