The size of this jumper can be changed by using thicker yarn and needles to suit.

From the pattern

Materials:

• Dk weight (Aussie 8 ply) wool. Approximately 300m - 350m of yarn will make the small newborn size. Thicker yarn will make a larger sizes but you will need more yardage. (see size and gauge notes below)
• 1 pair of 4mm needles if using dk weight yarn, or size needles to suit your yarn.
• 1-2 Buttons for larger sizes.

Size and Gauge:

• 22sts to 10cm will fit 14” chest (small newborn)
• 20sts to 10cm will fit 15.5” chest
• 18sts to 10cm will fit 17.5” chest
• 16sts to 10cm will fit 20” chest
• 14sts to 10cm will fit 23” chest.

This jumper is knit back and forth in one piece and seamed along the length of the sleeves and down the sides.