I think the Blender is a older frame than the Taper.... is that right? when did either come out? They both look very similar shape wise... seems like the most signficant difference is the arms, blender = Omatter arms, the taper is very wireframe arm. I just came across the Blender frame 2 days ago after eyeing the Taper for about only the past 3 weeks. Truthfully after Oakly phased out the XX metal a few years ago, I couldnt get to like any Oakley sunglass frames until on a whim at a airport shop, I started trying this years new Xmetal frame, which became too small for me to wear, and the sales lady worked me through to the Taper, which, surprisingly, fits.