That's right, they are crochet Fair Isle! This technique uses special crochet stitches to create a Fair Isle-like appearance.
This free crochet pattern uses Worsted-weight yarn. Pattern attributes and techniques include: In-the-round.
This free crochet pattern uses Worsted-weight yarn. Pattern attributes and techniques include: Tapestry.
This free crochet pattern uses Aran-weight yarn.