Akubra hats do not stretch; always purchase the next size up if you’re between sizes and use a liner (even a folded business card inside the hat will help). Your hat will eventually conform to your head shape, but won’t ever stretch. Depending on how they are treated, they may shrink over time. Good care and maintenance of your hat is critical; if the hat has become wet, let it dry naturally because force drying it can cause it to shrink. Wei's stocks a few hat cleaning essentials such a coarse sponge brush made especially for hats, and a hat stiffener spray.
When not wearing your hat, rest it upside down or on a hat peg to help keep its shape. If your hat gets out of shape, simply use steam to gently reshape it. To clean your hat, brush it counterclockwise, then lightly rub the area with a damp cloth to clean it (make sure to use water and no other cleaning products).