I think there should be a weight category to make searching for more heavy characters easier. A "Body Type" category like thin, average, athletic, fit, chubby, fat, obese, pregnant, etc.

~Quips

Our search traits are pretty much locked in as they are.

All expansion now is handled via tags.

私は日本語を少し読むと書くをできます。あなたも？

We have tags to search for details like that. Heavy, for example, is already in the database. Pregnant and Muscular are also tags already. I have yet to come across "thin" characters so I don't think it's a very valid tag. Perhaps if you could post some examples for what you mean I can work on it from there.

Half of those that you mentioned mean the same thing anyhow:
athletic = fit
chubby = fat = obese

Ok thank you, I was unaware of the tag system.

I can see how fit and athletic are the same, but not chubby and obese/fat; I can't think of any examples for chubby at the moment but maybe someone like Asuma from naruto would be in the heavy tag or fat characters.

Just my thoughts because some of my friends are on the heavy side and want a cosplay that would fit them (as in look like the character) even though I told them size doesn't matter in cosplay or even gender, like there could be a fat, male cosplaying Sailor Moon.