I love this pattern! It’s so cute and easy to make. Here are a few adjustments to size that I have made. The NB is the original size. They are not perfect by any means, but I have been successful so far with the adjustments. I’m also using a US7 circular needle and worsted weight.

Sizes NB (3-6mo, 6-12mo)

CO 80 (88, 98)

Follow pattern as directed for bottom ribbing. Once you reach the stockinette stitch, do the following: K5, P33 (37, 42), K6, P33 (37, 42), K3.

For the two smaller sizes keep the button holes the same (every 10 rows). For the larger size, add an extra 2 rows between each button hole (every 12 rows).

For the top, on the 3-6mo size, add 2 extra rows to straps, and 4 extra rows on each strap to the 6-12mo size. Also, with the 6-12 month size, you may want to add a couple extra stitches to each of the straps.