Impact's Vapor with Side Air inlet offers many of the popular features found on our other Vapor models but with a side air inlet for racers looking for fresh air to be ported directly onto their faces. Featuring Impact's unique Ripple Effect aerodynamic modeling and lightweight construction, the design of the Vapor Side Air helmet provides added stability to accommodate high-speed airflow while the narrowed eye port offers added protection from debris. Finished with Impact's Intelligent Gray Matter liner (a single-piece, variable-density liner) the Vapor Side Air helmet features a fire retardant soft-knit Nomex interior and interchangeable cheek pads provide a customized fit.