Get a durable, protective helmet without sacrificing comfort with the Mizuno(R) Junior B6 Solid Batting Helmet. Get superior protection with an ABS plastic shell and EVA foam liner. Both work together to absorb impact. The Drylite(TM) liner helps control moisture and the foam inner core also provides maximum comfort. Protection and Comfort Constructed with a durable, lightweight ABS plastic shell Honeycomb Shell pattern lowers helmet weight while providing high-level protection EVA Foam inner core provides superior protection and interior comfort Drylite(TM) liner helps control moisture ADDITIONAL DETAILS: Sizing: Adult (S/M) = 6 3/4" - 7 3/8", Adult (L/XL) = 7 3/8" - 7 7/8", Youth = 6 1/2" - 7 1/4". Meets NOCSAE standards