I have a bony little spine, and I hate, hate, big hate it when I'm doing crunches or other exercises that put me on my back and that little metal clip of my bra strap is cutting into me each time I lay back. Ouch! It gets so annoying sometimes that I actually unclip my bra, but then I have to either cross my arms across my chest or pin the sides of the bra to my sides with them if I want to remain somewhat modest.
I wish I had a bra that was super supportive and had a clip that didn't dig into my spine when I put weight on it on concrete. It could be on the front of the bra, between the breasts, or on the back but with extra padding between it and my skin...either way would be fine. I used to have several bras that were underwire and clipped in the front, but lately, I haven't been able to find any that fit well.

Anyone selling parkour clothes to women should at least link to good bras for parkour, IMO, and for me, sports bras just don't cut it.
As to shirts/pants, I usually prefer black. I can also go for grey, red, or brown. I would absolutely not, in a million years, purchase pink clothes to train in. I just bought a kickin' new hat in lime green, and could see buying stuff to go with it, but I wouldn't choose lime green for just everyday wear.
I like my shirts to be tight fitting for various reasons. They don't catch on things as easily; if I get overheated, I can expose my midriff and the shirt will just sit that way; and they don't bunch up and look or feel weird when I'm sliding into my backpack. And I like the look of them, too. I don't care about the necklines, so far as they're not too low.
Pants can have more leeway, IMO. I would actually like some nice, flowy pants that didn't quite reach the ground when I was barefoot, or that maybe had a bit of elastic at the ankle to hold them in place. That would provide complete freedom of movement, and would look great paired with a tighter shirt of the same color--again, my preference would be black. Black doesn't show dirt or blood very much and is always in style.

Other parkour clothes...
Shoes: I love Vibrams Five Fingers.
Socks: Toe socks, of course, to go with my Vibrams.

I like my socks to be playful, either in crazy colors, or with monkeys on them, or whatever. I wouldn't mind having a pair of plain black or brown toe socks, but I haven't gone out and purchased any.
Gloves: I don't wear them, but weight lifting gloves work beautifully. They're fingerless, slightly padded on the palm side, and the palms have leather (to prevent hands being torn) and stitching (for grip.)
Hats: I have to wear hats anytime there's a cold wind or I get terrible headaches. I LOVE beanies, if I can pull them down over my ears, and funny hats with ear flaps if they're obviously playful (the one I just ordered has koala ears.) A beanie with a PK logo would be AWESOME.
Just my thoughts.
