I hate to be a Kiljoy, but I would note that, going by yourself, you ought to keep your wits about you, regardless of what you wear, be it "spray-on pants" or anything else. While I have had many interesting/wonderful experiences at PI, I had one less than wonderful one when I went alone. Thanks to a CM who recognized what was happening and was willing to put himself on the line, everything turned out fine. So, wear what you like, but be aware that, when you're alone, you don't necessarily have anyone to "get your back."
That said, I have since been on my own (a get back on the horse sort of thing) and met a wonderful couple and had a fantastic time. So, have a great deal of fun on your solo trip! (Only 133 days until my next solo trip...)