Here's my comparison: Red--soft, true-to-size, fabric is a bit thin but not see-through. The fit is exactly how I'd expect, and I've worn size small consistently in Gap for the past five years. The price was low, but I don't expect it to last more than 3-5 years. This one I'd recommend if you're looking for a good price on something that looks nice. Green--a bit stiff, not soft, fits small, fabric is thicker. It's smaller all the way around, and as I unpacked it, it looked like an XS to me instead of a small. I'm trying to decide whether to return or exchange this one.

Ordered 3 of these.Black,white & brown.Only the black one is ribbed other two were plain.