SEI certified to meet NOCSAE standard All System Seven™ batting helmets use a high impact resistant ABS shell which is designed for maximum coverage in critical areas (the back of the neck and the cheek area).  The interior uses Ultracool lined foams to stay cool and dry even on the hottest days.  Large vents around the helmet also help you stay cool and are strategically placed for maximum shell strength. All System Seven™ batting helmets come with hardware for facemasks and chin straps pre-attached for convenience and are available in a large number of colors to match any team uniform....