Originally Posted by morsem
If there is no difference between Pima and Supima, then Brooks Brothers has a three pack of pima undershirts that are quite nice. I know I have enjoyed mine, although I think I bought size L and should have gotten M.
They have a more expensive "Mercerized" line as well, which I have never felt. I don't know what Mercerized means or whether it is worth the ~$6 per shirt premium brooks charges.
2xist sounds interesting and I may give them a try.
Also, there is Zimmerli but I can't afford that yet.
Perhaps someone can opine as to whether the regular line Zimmerli is comparable with the Pima Brooks or 2xist or if it is more along the lines of the mercerized Brooks offerings. Perhaps even the regular line Zimmerli is in a class all of its own?
Mercerized Cotton---"Cotton that has been treated with sodium hydroxide to shrink it and increase its luster and affinity for dye. It is also makes it mildew resistant and stronger."
The main difference IMO is that merc cotton is a touch stiffer than pima and also has a lot more sheen. Also, merc cotton is not supposed to shrink but I have a shirt from Sonia Rykiel that did. The sheen didn't wash off though. I think pima is better.