Iron On Clothing Labels are a permanent transfer that embeds into the weave of the fabric. The flexible material allows them to stretch with the fabric.
Stick On Clothing Labels are made from a woven material.
These labels have a glue adhesive on the back which means you can simply peel off the backing and stick onto the care instruction label of the garment.
This is not a permanent solution, however if you would like your labels to stay put in the wash stick the label on to the garment and iron over with a hot dry iron.
The glue will melt and bind to the fabric.
Alternatively, you can stick onto the garment and sew around the edges or use both methods for a long lasting solution.