Advanced and innovative, the Pro7 has the Seven Technology liner system. Open cylinders for ventilated cushioning, Seven Tech compresses and laterally displaces energy to soften impacts, which greatly reduces the chance for concussion. The Pro7 also features a one piece shell and visor design for higher impact tolerance, reduced weight and a better balanced fit and feel. A ProFit system lets you customize the helmet to perfectly fit your head. A layer of cross linked foam can be adjusted and locked in place with a Pro Slide system. You can also use one of three included jaw pad thicknesses to get a snug fit.