Very thin fabric, it could be a pajama, in any case I don't think it's worth the price (with a 50% discount) that I paid.

Nice little jacket for spring days only, wearing a t-shirt underneath, as it is very thin. It is also a bit tight, if you want it very comfortable on you, it may feel tight. The only downside is its zipper, which goes up and down with a little difficulty, as if it's broken.