New///White Brothers POWERFILTER AIR FILTER designed exclusively to deliver the highest level of performance when using the stock airbox on track, trail, or sand dunes. Outer foam is high-density foam that is slightly thicker than the competitions to ensure a little more protection from the elements.Inner filter is a fine density foam that prevents the smallest of dirt particles from entering your intake system. Another great feature is that when it gets dirty it can be washed and reused.