Tsg evolution special makeup helmetthe evolution is the choice for almost the entire tsg bike skate and bmx team featuring their custom low and snug fit the evolution fits to your head like a protective second skin shaped on all four sides and anatomically correct it smoothly curves around your head for a great fit and wearing comfort without slipping or jiggling featuresshell material high density injected abs shell liner materiallightweight eps impact foam padding pre moulded and hea