Cut the access file out of the iron-on material. Don't forget before cutting to size the design to fit your onesie.
Place the shiny side of the material down on the mat and mirror the images before cutting. Use weeding tools to remove all excess pieces, including the centers of letters.
Press the design to the front of the onesie with your Cricut EasyPress. I pressed my red first, removed the liner, then pressed the white.Follow the recommendations for time and temperature on the Cricut website.
Enjoy seeing it on the adorable baby in your life!