A felt hat should get better with time.

Our felt hats are made to soften, settle and take on the shape of the person wearing them. The more you wear yours, the more it becomes your own.
Felt hat care
Spot clean with a damp cloth. Reshape with a little steam when needed. If your hat gets wet, reshape it and let it dry naturally—never leave it in a hot car.
A few things worth knowing
Use the adjuster behind the inner band to dial in your fit. For travel, lightly fill the crown with a scarf or socks to help it hold its shape.
Wear it often. That is the important part.