This is a very simple little sundress that can be manipulated in so many ways! If you use sport weight yarn & a 3mm hook, you will gain a preemie size, DK & a 4mm hook will give you a newborn size, DK & a 5mm hook will get you 0-3 months size, & worsted weight & a 5.5mm or 6mm hook will give you 3-6 months size.
