Best Bottom sizing
I won the Nicki's Best Bottom giveaway! So excited to try these, as I've read such positive reviews. I know the inserts are sized, but I'm not sure whether to opt for medium or large. DS just turned 1yr and is 20lbs 10oz, 29.5" tall. He wears Grovia AI2 shells on the smallest or medium setting and BGEs and Grovia AIOs on medium. I'd hate for him to outgrow (or outwet) the mediums very soon, but he's not a big dude so I don't want too much bulk.
Thanks for your help!