I am trying to figure out the best torso size to get. If I use leather belt, set the bottom edge of the belt resting on my iliac crest and measure the middle of that to my C7, head tilted forward, I get 20-20.5″. I typically wear the hip belt centered on the iliac crest give or take a little. I have read for the Arc Blast and Haul, if you are on the cusp of sizing you may want to size down. Based on this what do you think would be correct torso sizing for this pack?

