Fair Isle is a traditional knitting technique named after an island in the north of Scotland called, well, Fair Isle. The technique is all about knitting in the round using five or so colors (only two per row). The technique wasn't a big deal until the soon-to-be King Edward VIII started wearing Fair Isle tank tops in 1921. (A side note: Eddie ended up abdicating the British throne so he could marry a twice-divorced American socialite. Fashionable and wild about love: that's how we like 'em.)