With A, ch 22.
Row 1: Sc in 2nd ch from hook and in each ch across - 21 sc at the end of this row.
Row 2: Ch 1, turn, sc in each sc across.
Rep Row 2 until piece measures about 8 in. (20.5 cm) from beg. Change to B in last st of last row. Cut A.
With B, rep Row 2 for about 8 in. (20.5 cm). Cowl should measure about 16 in. (40.5 cm) from beg. Change to A in last st of last row. Cut B.
Continue to rep Row 2, working 8 in. (20.5 cm) stripes in A and then B, alternately, until you have worked a total of 3 stripes of each. Cowl should measure about 48 in. (122 cm) from beg. Do not change color in last st. Fasten off B.
Sew short ends together. Weave in ends.