This Supergirl Costume Replica looks pretty spot on. It looks just like the one that Supergirl wears in the hit CW show. If you want to cosplay Supergirl, be Supergirl for Halloween, or just occasionally transform into her, this is the costume for you. It comes from Etsy seller pinkpurr, who also has plenty of other cool costumes. Funny, I didn’t like this costume at first, before the show aired, but it really is a great design.