Leatt brace compatiblespeaker compatibleincludes a padded travel bag with micro fleece liner and external goggle pocketremovable washable liner and cheek padsengineered to protect world cup downhill and gravity riderscomplies with one or more of the following safety standards for bicycle helmets cpsc snell b 95 ce and astm 1952 standard for downhill mountain bike racing helmetslightweight carbon matrix shelltarget weight 1000g4th dimension cooling system and ventilation provides supe