The 2013 Battle of the Brands has been flu of upsets, as upstart brands are knocking off the big boys in boisterous fashion. In the latest round, Portland, Oregon-based Airblaster took it to outerwear opponent Quiksilver in commanding fashion. Airblaster officially becomes the third brand in the final four, joining Arbor and Never Summer. Who will the fourth and final spot go to? You have to wait until the next battle is posted to find out.