The largest sizes of those T-shirts, XL, roughly equates to a size 10. “Flore Flore is a bit fitted, but women, mothers, grandmas, all different body types wear it,” Ms. van Zuilen said.

Generally speaking, the women’s T-Shirts market includes clothes for the upper body that are worn beneath outerwear. According to the traditional conventions of the textile industry, they are ...

(If you prefer a different material, the shirt comes in chambray and linen too.) When I reached out to stylish women for this story, Everlane was the brand mentioned the most — “For the price ...