I found the cutest swim trunks for DS at Carters (online at Macys, and they're still stocked up on all sizes, so I know the availability won't be an issue for a little while).
DS is 5 months and at the beginning of September will be 11 months old. Our last vacation we have planned is the beginning of August, but I'm sure we'll go swimming until it gets too cold. Right now, he fits the best in 6-9 month clothing (they are just starting to fit him almost perfectly; still a little too big).
What size of swim trunks (and rash guard) should I get him? Our first swimming time might be May at the earliest, so he'd be 7 months old.
They have sizes 6-9 months, 12 months, and 18 months. I would be willing to get him two sizes, but I don't know which two. DS will be wearing swim diapers underneath.
Which would you get or how would you go about deciding which sizes? The drawstring is not real, so I wouldn't be able to get a bigger size and just cinch it up tighter.