Comfortable, durable and affordable - this gear, like all MBS products, are made with quality materials and attention to detail. - High-density, impact resistant ABS outer shell - Shock absorbing , thick EPS liner - Adjustable chin strap - Strategically positioned air vents - 2 sized liners for optimum fit - CPSC certified - MBS tribal graphics Sizing: S/M = 19"-21" L/XL = 21"-23" Availability: Usually ships the next business day. MBS Helmet mbshelmet$39.95Sizing: S/ML/XL Have a Question? Email us. Hours: Monday thru Friday 9 AM to 5 PM (EST) Closed Saturday and Sunday Web www.mountainboardshop.com