Cast on 100(120) stitches. Join to work in the round, being careful not to twist stitches. Place marker on needle to indicate beginning of round.
K5, P5 around until piece measure 13"(15").
Bind off loosely.
Cast on 30 (35) stitches. Turn and work in K5, P5 for 10 (12) rows. (Do not work in the round.) Repeat for second sleeve.
Seam each sleeve together lengthwise and then sew to the top of the body.