Here is a beautiful summer set for your babies to enjoy. The vest is given in one size with basic instructions on how to make it larger. It also gives you an option to add some sleeves if you want.
As for the sandal pattern, it comes with lots of pics.
You will need a 4 ply yarn, your crochet hook and buttons.
If you enjoyed this free crochet pattern you might also enjoy more designs by Crochet/Crosia Home.