For a while it was a very good shirt.  Started noticing white stains around the underarm.  Mitchum has never stained a shirt in all these years.  Then noticed the fabric fatiguing in the same area.  I have shirts years old some cheap, some spendy, with no problem, this Carhartt is just a few months old.  Started noticing bad stains in other areas that have not affected my other shirts and they do not wash out after repeated tries.  In the other shirts the stain washes out.  I would hate to put the little sweat shop worker out of business because they did a fine job of sewing.  The fabric is the problem.