1. Fill a sink or basin with lukewarm water.
Avoid hot water, as it tightens fibers.
2. Add a small amount of baby shampoo or hair conditioner.
Use about one tablespoon per liter. This helps loosen the fibers.
3. Soak the shirt for 20–30 minutes.
Let it absorb the water completely so the fabric relaxes.
4. Gently remove excess water.
Press the shirt (don’t wring it) and roll it in a towel to remove moisture.
5. Lay the shirt flat and begin stretching.
Pull gently at the sleeves, width, and length. For even stretching, pin the shirt to the towel or use weights at the corners.
6. Let it air dry naturally.
Avoid using a dryer — it will reverse the process.