jcampbell52522286006 wrote an answer about Granite Gear Nimbus Ozone Backpack - 3400-3800cu in on November 7, 2008
You had better stick with the short. Anything larger wouldn't fit properly. I am an 18" torso and I originally ordered the short. It didn't quite feel right, so I ordered the regular torso, and for me it fit better. YMMV!