Puff stitch is useful when you want to make a puffy blanket for your little one or make a hand bag which looks puffy. you need at least worsted weight yarn to make it look puffy. The thicker the yarn, the better. Blankets made our of puff stitch is extra comfortable and warm which makes the puff stitch a perfect fit for winter projects. This is an easy to follow video tutorial on how to crochet puff stitch.