Work sweater with stripes from neck down, in Duo. Work the back in rows (back and forth) with turning rows to create and shape slanting shoulders, and cont until underarms. Knit up sts on each shoulder for left and right side of front. Work turning rows for slanting shoulders and inc sts for neck before joining left and right side to one front. Cont back and forth until underarms. Join back and front and cont in rnds to full length. Knit up sts on each armhole for sleeves. Work sleeves in rnds and dec to a narrow shape. Work neckband.