How to iron the patch on: -Two important things are: a. ensure smooth and seamless edges. b. using iron to warm the area the patch will go first. 1) Turn your iron on "Cotton" or set iron to 330℉ 2) Make sure the steam is turned OFF 3) Place the patch where you want it to go 4) Iron (keeping it moving at all times) with heavy pressure for 30secs, then iron the patch edge firmly for 20-30s with slow circular motion. If it doesn't stick after that time, keep going till it does 5) Turn your garment inside out 6) Locate the patch and iron again for 30sec minimum on the inside Thats it, you're done. Then let cool completely before wearing.