sized wrongly.  felt like rough cotton.  i didn't mind if it was thin because my son does run hot very often when he seems.  i bought these intending them to be sorta baby undershirts. ;)  my 6 mth old (25 percentile) boy is wearing these in the 12-mth old size a month ago.  i have given up putting these on him, he just cries.  the ones from gap and carters are much better.  carters' are softer and bigger but gap ones (although more expensive) have a lot more stretch to them and are soft so they are comfortable ALL THE TIME.