Although the website says white and navy, I noticed that it's really ecru, which is a creamy white color. I have ecru with navy stripes and navy with ecru stripes. 3 of each.
I'm 5' 6'', 127 lb., and the XS is a perfect fit on me. I would say that in terms of measurements, they're about:
22 in. (sleeve length; shoulder to wrist)
18 in. (chest)
27 in. (length)
These are estimates since I don't want to open the bags. But I do remember how they fit when I ordered them in both XXS and XS. And I think they shrink a tiny bit when you wash them and dry them.