I love this costume!!!  It's very good quality and looks great (not cheap looking like most costumes).  I am a size medium (size 8/10) and fits great.  I think there would be room for someone up to a 12/14.  It may be too big for someone who is very tiny.  Great knee length for someone wanting more coverage.  Only thing is it doesn't come as ripped up as the picture.  There are holes there but maybe you need to rip it yourself (which is what I did).  Not as low cut as the picture.  Wearing this with heels, "50's" hairdo and zombie make up!!