DeputySeanYeah. Just got back from a week long trip with it. I'm about 1/4" under 6' and the M/L work well for me. The torso length is within 1/4" of the L size of my Hanchor Marl pack. I think they have put an 18" spec on that but it seems a bit longer than that to me. More like 19". It's hard to put a number on it because it does have load lifters which attach higher and the shoulder straps are a uncommon wrap around design at the shoulders, so it accommodates a longer torso than just looking at the distance between the hipbelt wings and shoulder strap connections.
dandurstonHey Dan, hopefully this is not to personal, but what torso length are you? I'm interested in the pack, but concerned about fitting. This being a backpack I feel you will get alot of questions about this.