Height has little to do with torso length. You can take two guys of the same height, one with long legs and a short torso and the other with shorter legs and a long torso and there can be a huge difference in torso length. You can google search "how to measure torso length" and find some good instruction. I will not buy a pack that doesn't have marked torso adjustments on it. Torso length is absolutely critical to proper pack fit and comfort. I won't name brands but when I have contacted some of the big hunting pack manufacturers, a lot of them could not even tell me what torso lengths that their packs would fit! I have not seen the Kuiu pack yet, but if they are talking about torso length that is a very good sign.