Just a thought, but those who have a problem with Kona and Bella raveling might want to try the new American Made Brand (AMB) by Clothworks.
It's a shirting weight fabric with a higher thread count (78x74) than Kona and Bella, both broadcloths with a 60x60 count. AMB currently has just 50 colors but I'm sure they'll add to the line as it grows in popularity.