When the straw hat edge is soft and collapsed, you can wash the straw hat edge with a small amount of water. You can't completely soak the straw hat in the water, and then put it in a ventilated and cool place to dry. After drying, you can restore the original shape.
Straw hats are usually woven with wheat straw and other things, which has the effect of ventilation and shading, so they are the personal belongings of many people when they go out in summer. However, straw hats are easy to deform if they are not placed properly.
If the brim of the straw hat is soft and collapsed, you can wash the edge of the straw hat first without too much water, because it is not easy to restore the original shape after soaking in water, so wash the edge of the straw hat with a small amount of water.
Then put the straw hat in a cool and ventilated environment to dry, and it can be restored to its original state. However, when using the straw hat at the back, place it carefully and hang it to avoid deformation of the brim of the straw hat.