A whimsical addition to any outfit, Twisted Vines and Butterflies is a hat that winds its way into your heart and into your wardrobe. Also check out its accessory companions the Twisted Vines and Butterflies Purse and Fingerless Hat. One size fits most. Materials: OurHumbleCastle BFL worsted weight yarn. Other worsted weight yarn can be used. Notions: US 7 (4.5mm) circular needle, cable needle