The tshirt I wear to the gym is a bit too small and it hugs my muffin top. I wear it because it is my power color and I feel good wearing that color. I realized the other day that although my fat is flying, I am standing upright on the elliptical machine and getting in a good workout while another woman who is there when I am might be dressed better but is clinging to the machine for dear life (I seriously worry about her posture). I also wear the same thing almost every day. I only have one pair of "pants" that fits me so I wear them every day. And the power tshirt matches them. I refuse to spend money on exercise clothes when I plan for them to be too big in a month or so.
Just now I put on leggings and a tank top and a two-sizes too big long sleeve tshirt, but that's because it's an outside day and I'll be exercising on the hiking trail. It's sunny but not real warm yet but I wanted to be able to lose a layer if I get hot. Less likely to see people I know out there and I'm usually moving faster than they are anyways so if they do care about my clingy clothes, I'll be gone and they'll just be jealous.
It's like that Friends where Rachel and Phoebe go running and Phoebe runs crazy- she tells Rachel that it doesn't matter what people think because you are moving so fast that you'll be gone and never see them again!