There's definitely a need for this, most every sports related apparel company out there are size snobs. It's not just "bigger" folks who are left out but tall women are also under represented. I'm 5'10 - 5'11 (depending on the day I guess) and it's all but impossible to find the styles I want to wear that fit. It's especially bad in the shoe market, I don't have huge clown feet by any means but large enough that I'm stuck wearing whatever I can find that fits instead of what I want to wear.
Best of luck!