Mike wrote an answer about The North Face Terra 65 Backpack - 3950cu in on January 18, 2012
Brian, I have the Crestone 60 and absolutely love it. The reason I chose the Crestone over the Terra for a 60+L bag was for the back panel. The Crestone breathes better. The drawback for the Crestone is a couple more ounces for the extra comfort (7 ozs difference) and a 50% price increase.