Well, I guess it's more of a mommy problem since my toddler could care less about what he wears. But given that my little guy has consistently been taller than average at all his check-ups, I should have foreseen the problem of him basically outgrowing onesies/snap shirts before hitting what looks to be the maximum age sizing guide (24 months) that most children's brands carry for onesies.
I randomly picked up what looked to be a VERY generously sized shortall/romper/layettes/whatever they are called by Polo/Ralph Lauren at a resale shop and was pleasantly surprised just how large it was at even the 24 month size. Most of our 24 month Carter's snap shirts/onesies are starting to look a bit tight and I wasn't quite ready to give-up on snap shirts/onesies yet. After all, they keep my toddler's belly/back covered, keep his pants contained when he feels the urge to de-pants himself in a fit of boredom, and, for the rompers at least, make diaper changes more convenient for me since I'm not removing shorts. Thus, I looked online to try to find if there were any brands that ran large/long and basically came across discussion of snap extenders and mentions of Old Navy.
Since the fit on the Ralph Lauren rompers was so roomy, I decided to order a few to see if their sizing was pretty consistent. After several orders, I came to realize that what they call their "mesh shortfall" has the roomiest (stretchiest) fit and that 24 months is noticeably larger than their 18 month size. Material really makes a big difference as their thicker cotton just doesn't stretch as much -- same for any madras-style cotton rompers.
Old Navy rompers does seem to be bigger than Carter's but the Ralph Lauren 24 months appear to be the longest (and widest).
