I used a size I/9 crochet hook and got to work with Red Heart Super Saver Yarn, color: Aran. I chained enough chains to get to 90 inches, because for this particular pattern I wanted to imitate a knit so I would have to crochet it lengthwise instead of by width. For my crochet "knit imitation" I did one row of single crochet, followed by a row of half double crochet. The next row was a row of single crochet, but in the back loops only. Row 4 was regular half double crochet, and row 5 was single crochet (back loops only) so on and so forth until the scarf was about 5 inches wide. Voi la! I added fringe on the two ends and my brother's aviator scarf was complete. It looks better than I anticipated and quite fitting for an aviator!