I needed to order a new bathingsuit for our 2 yr old who is just starting to get a little too long for her 12-18 mo suit, so I ordered the 24 mo size...it was smaller than her 12-18 mo suit, so much that she said, "it hurts," when I tried it on her.  It seems nice/well made, but the sizing is desperately off.  You missed the mark on this, Carter's.