I'm more forgiving of gear than some because I've found that for me, I'm a lot more likely to play hard with my girls (who are young) if I'm wearing something more "gear-like" (which means a casual Athleta dress or pair of pants) than if I'm wearing even jeans and a cute top. I came to this conclusion this summer when I went to the playground with the girls after I'd just been to the gym for my own workout. I wore my workout clothes, and I noticed that I played a lot more - I went down the slides, climbed, and ran around - than I did when I was wearing regular clothes because I didn't have to worry about my top gaping, my skirt riding up, or flashing anyone. While my girls are young, I'm willing to sacrifice style on the days that I'm home with them, especially since I can express my fashion sense more when I go to work during the week. I still want to look nice because I feel better then, but I also want to be able to run outside, dig in the dirt, and get out the fingerpaints without the rigamarole of changing my clothes.
My ultimate answer is this: I don't think that most of the clothes from T9 or Athleta can really look "fashionable," but I do think that they can look very nice, and that's good enough for me since they are quite functional. Part of my hesitance to call them fashionable is because sporty is just not my style, but I'm willing to trade my style for clothes that I still like a lot and that meet all of my comfort, machine washable, non-wrinkly needs.