I'm 6'1 and lanky, and the large/xl is a bit short in the arm and torso for me (after regular warm machine washing, not delicate cycle). The thumb-hole in the sleeve is a bit weird - not comfortable to use it since the sleeves are a bit short and it tugs. Not sure the thumb hole would be a good idea in any event, because you don't really want at seam between your palm and the bars. Otherwise, the construction is good and the material is ok - despite the low % wool, it does that wool thing where it emits steam when you overheat in it. Does have its limits as far as wicking goes. Warmer and nicer when wet than my Patagonia base layer. A touch scratchy (think old-fashioned wool but not quite as bad) against the skin, but nice and stretchy and a good form-fit. Will try Craft next based on positive reports.