The tsg skatebmx injected helmet bonds the soft eps impact foam liner to the hard abs shell with a high performance adhesive that gives the helmet better protection from penetrations whilst still keeping the cost down the abs shell is a tried and proven material used for bmx riders that need good protection and the eps liner not only offers comfort but its lightweight structure is flexible to also offer good penetration resistance the bmx helmet has been made with 13 aerodynamic vents to kee