In sizes from Preemie to 18 months sizes. So cute, adorably fun to knit and easy too. Chose one heart to decorate hat, two hearts overlapping, or make the squared off version with pompon toppers. All made so quickly in worsted weight yarns and knitting needles, US # 6, and # 8. This is not a double pointed needle pattern, as so many have mentioned they do not like double points, but with straight needles. So, "yeah", here is a pattern you can use over and over again as baby grows. And if you knit for charity, the preemie hat is a good choice too. Show them you love them with a little heart adorned onto the hat!