It does the job.  It's a nice, light layer that fits nicely over close fitting tops--workout gear.  And I bought it for that.  It's nothing so special but I think it will last a very long time.
I've washed it twice so far, line dried and no shrinkage or color change.  Seams intact!
I will say that it reeked of chemicals upon arrival so the first wash was pretty much immediate.  I washed it alone and there was no fading of color.