This is very cute little hat.this pattern is for 4 sizes, from newborn to 3 year old.you can make it in various colors. I have use dk(double knitting) yarn for this project, you will need 4.5 mm crochet hook. you can make this hat easily .it is a quick project you can make it in less than 1 hour. half double crochet is used to make this hat, stitches are close by with no holes and for edging front and back post is used.