Merino is worth the price, but you already knew that....  Better than Icebreaker in my opinion (color options, fabric weight & durability) . I have some older shirts from Woolly, and the large fit great.  However, this time both shirts (size large) were a bit small for me, but after line drying and bit of light stretching when wet, they fit ok.  The xtra large are now huge, and I had to return for the large.  I wish they could settle on a sizing scheme, instead of changing it so often.  And maybe offer a Large-TALL option, but that might be impractical.  Still 5 stars all the way!