The Bauer Re-Akt helmet has taken the top spot over the 9900 helmet, but takes on the more sleek look of the 4500 helmet, and aims to become Bauer's best helmet on their line. Bauer has added upgraded features such as a suspended liner, advanced foams, and a new size adjustment system that just add more levels of features and protection when compared to any other helmet.The Bauer Re-Akt helmet has a Suspend-Tech Liner system which means when the helmet takes an impact from any angle the suspended liner stays with the head to keep the pads in the proper place where they can best do their job. While the suspend liner stays with the head, the shell and interior liner of the helmet rotate to absorb and deflect the impact. With the Re-Akt helmet taking on it's literal name and reacting to the hit, this greatly reduces the brain from excess movement that can be very dangerous. The Re-Akt helmet also features PORON XRD, this foam is very lightweight, flexible, breathable, and dissolves any serious force on impact. The use of PORON XRD and Suspend-Tech liner are used in the two key areas of the helmet that receive the most impact. Less exposed areas of the helmet, areas proven to not take the majority of the impacts, use Vertex foam. When compared, Vertex foam has the same density as EPP foam but is lighter and provides improved impact protection.Bauer still offers the same tool free adjustment, but this time they changed it up a bit. The Re-Akt now has a 3.0 Optical Lock that is a single adjustment located on the center back of the helmet. To use you just lift up the tap and slide the adjustment piece to fit your noggin and youre ready to go. Also for comfort Bauer uses memory foam like padding that fits snuggly to the head while providing optimum comfort. Lastly, for the stink, Bauer installed Microban antibacterial protection to resist odors and mildew.Youll enjoy the latest comfort, style, and protection with the Bauer Re-Akt helmet. The game of hockey is quick, you have to be on top of your game and so does your equipment, and the Re-Akt helmet does just that.