With comprehensive helmet sizing that fits the entire range of players â from Tee ball to Adults â now everyone can play with the protection and performance with Eastonâ s Alpha Batting Helmet. Its ABS Thermoplastic Shell is engineered for maximum protection, while a dual-density foam liner provides shock absorption and comfort. BioDriâ ¢ fabric liner absorbs moisture for improved dryness and added comfort. Easton Screaminâ E forehead sticker is removable for team customization. Meets NOCSAE standard for all levels of play.