Used By Rescue Operations And The Military, The Pro-Tec Fullcut And Ace Rescue Helmets Were Designed With Comfort And Efficiency In Mind. Up To 17 Open Ventilation Holes Allow Water And Air To Pass Through The Helmet For Increased Effectiveness In Hazardous Situations. Equipped With Pro-Tec’s Adjustable Interior Headband Fit System, These Helmets Remain Balanced And Centered On The Head During Chaotic Water Rescue Situations. It’s The Least We Could Do For The Brave Men & Women Keeping Us Safe In The Water.Technology:Hardshell AbsEvaStay TightGoggle Clip