You can knit the hat of any size. To do this you need to make their own calculation of the amount of loops and rows. Pattern calculations for size 0-3 months.
Materials
* Acrylic yarn (100g - 300m)(3.5oz - 328yd) colors
light purple - 40g
purple - 20g
print - 60g

• Knitting needle 2.5 mm and 3 mm (1 and 2 US)
• Crochet hook 4 mm (G-6 USA)
• Needle
• Ribbon