They pack really well, and everyone that I've had borrow them (I always bring an extra hat when I know it's going to be really sunny out to share) likes them as well.
My husband wanted me to share that we ordered from here on your rec and they are great! He already wants a second hat. It did make me realize I have a tiny head though.
I got one of these at a local festival and really like it. You can email them and ask about sizing, because while it says they are one size fits all, some are bigger than others. The stoned dude working the booth would look at your head and know which one would fit.