Fair Isle
Fair Isle is a colorwork technique where two yarn strands are carried across the whole round, with short floats on the wrong side between color changes.
Explanation
Fair Isle, named after the Shetland island, is a form of stranded colorwork that typically uses two colors per round, letting the unused strand float loosely across the wrong side between color changes. The floats need to be loose enough to avoid puckering the fabric, but not so loose that they catch on fingers or buttons. Fair Isle is traditionally knitted in the round so you always see the right side of the pattern, which makes it easier to track color changes as you go.