Here's a shot of the back to show the trim on the underside:
Before I could finish it, of course it needed to threaten me with more physical pain... I wasn't falling for it this time! (here's the previous post if you're wondering what I'm talking about). After pinning the purple trim on, I went to put the hat on my head twice, not considering the pins were sticking straight out into the inside, as seen below. Ouch! Glad I stopped myself both times, disappointed in myself that I didn't learn the first time.