GE Lexan polycarbonate alloy shell Single air liner designed for optimum fit and comfort Contour molded dual-density foam side pads Interchangeable component parts for a custom fit Large ventilation holes to keep air flowing Non wrap-around nose bumper protects bridge of nose and helps eliminate forehead chafing Treated with Ultra-Fresh to inhibit growth of bacteria, mold, and mildew that cause odors and stains Comes with a soft cup chin strap Standard with 3/4" universal firm jaw pads Meets NOCSAE, AFL and USA Football Standards Face mask NOT included with helmet. Helmet Sizing Chart