Sorry for What I said when we were working cattle
How to press on your shirt:
1) Pre-press your shirt to remove any moisture
2) Apply transfer and cover with parchment paper or Teflon sheet. Press at 315° for 12 seconds, heavy pressure let cool
3) once cooled pull from one
4) not required but you can - Cover with parchment paper/Teflon sheet and press again for 10 sec.