Just that, really. 10mo DS is average weight, but has a long body. (50th centile for weight, but 75th for length, which seems to be more body than legs.) So I'm wondering if people have found brands for vests that fit that body shape well.
We do separate tops and bottoms, but I also like vests fastening under the crotch to help keep his nappy in place.
So far, we've only tried Primark and Mothercare, and I thought the way they fit must be the way things are. But I just noticed that a vest from a relative in the states fits better, so now I'm wondering if there are better brands for him in the UK, too.