My regular tour caps, I usually wash in the top drawer of my dishwasher, using a little Shout spray on them with success. The new Tour Aussies seem to be made of the same fabric. Just got my hat a few weeks ago and have not washed, so do not know about shape. Guess it depends on how well it is cared for.

Haven't got mine dirty yet but plan to wash it in the clothes washer and set out to dry. Works great on the billed caps so should be good on the new Aussie, especially with the non-cotton material.

The new Titleist Tour Hat is perfect. In addition to SPF protection material, wide brim and the fact the brim does not flip up when heading into the wind it can't be beat. Regarding the care of the hat, I simply tip the hat inside down and put it under the kitchen faucet and with my hand, gently rub the headband and the front of the brim if needed. I then hang it out side to dry. Once dry, I stuff a plastic bag from the cleaners into the hat to hold its shape until the next time I play. Just a suggestion.