I first made this pattern when my oldest was 2. She needed something to keep her warmer, and it was between paycheques. I made two granny squares that were just big enough to cover her front and back. The next step was to make the straps with single crochet stitches and covering her shoulders from the top of her armpits in front to the same spot on the back. The vest was still a bit too narrow, so I did side pieces that were the same width as the straps. I sewed everything together and this is the result in adult form.
