The Impact Racing Vapor LS Helmets features Impact's lightweight tri-weave construction and is loaded with features. Aggressive chin-bar styling provides for additional room for the microphone while integrated vents offer cooling, fog-free comfort. Superior ambient noise attenuation is achieved through the use of Impact's proprietary insulation foam creating a quieter race environment and reducing the potential for noise fatigue. The Impact Racing Vapor LS Helmets also offers a tapered design allowing for additional clearance between the helmet and the frontal head restraint device, thus minimizing interference between these two safety systems. Like all of Impact's racing helmets, the Impact Racing Vapor LS Helmets features Impact's exclusive "Intelligent Gray Matter" inner liner upholstered with fire-retardant soft-knit Nomex material, providing superior comfort and fire protection. The Impact Racing Vapor LS Helmets offers a truly customized fit with interchangeable, variable-density cheek pads. A wide-angle, wrap-around eye port, a Kevlar chin strap with dual D-ring closure, and a 1/8" polycarbonate shield with exceptional visual acuity finish off the Impact Racing Vapor LS Helmets.