Longitude is crocheted from the bottom up, using a dense combination of single crochet and chain stitch in a striping pattern to create spots on the brim and vertical stripes on the body. The finished hat is cozy and fits the head of a teen or adult woman, but it is not elastic. Since the fabric made from this pattern stitch is a heavy one, the hat is made in sport weight yarn, using a size I (5.5 mm) hook.