This is apropos of nothing, but I was just thinking about this.
IMHO, ideally a unisex t-shirt would be a bit wider at the bottom than the top, in order to accommodate persons who do not have stick-straight figures, but without being "shaped" for any particular body type up top.
But that is not, in my experience, what men's/"unisex" shirts are like. I find that whenever I buy one it is cut VERY LONG and straight - meaning that it invariably bunches up around my midsection/hips. So no, these shirts are definitely designed for what is viewed as a typical male body type, not for ANY old body type.
It can be hard to find women's shirts that are not TOO fitted up top and also that come in larger sizes. The only place to get these is usually a big cheap store like Wal-mart or K-mart.
So yes, it is lame to claim that the male figure is the default/generic body type and wrong to claim that clothes designed for male bodies are "unisex"!
http://thesocietypages.org/socimages/2009/12/14/women-can-wear-mens-shirts-but-men-cannot-wear-womens/