I ordered the size 4x or xxxxl for my teen daughter who actually wears a Junior size large/xlarge.  She was ticked at me for ordering such a large size but I insisted she try it on.  It is too large for her so I will try the 2x and see if that fits.  I feel like I wasted points for this since the sizes mean nothing!  It's a crap shoot to get a size that fits. Also, after washing, the logo is not centered on the shirt.  It is twisted to the right.  Maybe next promotion Pepsi can get some quality prizes!