How to care of wool shirt
Wool shirts without inner linings are relatively easy to take care of at home. Essentially use brushing and steaming, and occasionally wash with water when parts are stained with sweat or other dirty substances.
However, felting tends to occur with wool fabric when it is wet or when subject to high humidity, friction, or pressure, so special care must be taken when using water.
In past times in Europe, woolen clothing was kept in shape using the minimum amount of water, as they naturally had no dry-cleaning technology. In modern times, however clean the method you use to wash your clothes, the washing is one reason for its deterioration. Because wool has a natural antibacterial effect, remember that it is better not to wash more than is necessary for the sake of the long life of your clothes and for the sake of the environment.