Size: Finished chest measurements 24 (26,28,30) inches
Length 12 (13,14,15) inches
Approx. age sizes: 18 mos (2-3yrs, 4-5 yrs, 5-6 yrs)
Children vary so much in size, be safe and measure the child's chest and add 3-4 inches for ease in fit.

Gauge: 18.5 stitches and 32 rows in seed stitch = a 4” square
[Stitch gauge is more important than the row gauge.]

Abbreviations:
BO-bind off; beg - begin(ning), cont-continue; BO-bind off; CO-cast on; dec-decrease; k-knit;  p-purl; rem-remaining; rep-repeat; RS-right side; St(s)-stitch (es); tog - together, WS- wrong side
 

Stripe Pattern for body worked in seed stitch.
2 rows Taos
2 rows Aran col A
2 rows Taos
2 rows Aran col B
2 rows Taos
2 rows Aran col C
repeat these 12 rows

Back: CO 56(60,66,70) stitches in col A and work 1 row in K2-P2 ribbing, Work the next 2 rib rows in col B and the last 2 rib rows in col C. A total of 5 rows in ribbing. Beg the stripe pattern for the body and work until the back is 12(13,14,15)" long. Neck and shoulder row: Work across 17(18,20,21) sts, BO center 22(24,26,28) sts then work across remaining 17(18,20,21) sts. Leave the shoulder sts on a holder to be worked later with the front shoulder sts in a three needle BO.

Front: Work as for back until piece is 10(11,12.5,13)". Beg neck shaping. Left front: work across 21(22,24,25 )sts and turn work, (leaving the remaining sts on your needle to be worked with the right front). Working these stitches only, dec 1 st at the neck edge every right side row 4 times. Con knitting in stripe pattern until the front matches the back and leave these sts on a holder.
Right front: Join a new ball of yarn and bind off the center 14(16,18,20) sts and work across rem sts. Dec 1 st at the neck edge every right side row 4 times then cont knitting in stripe pattern until the front matches the back. Leave remaining sts on a holder.

Sleeve: CO 32(34,36,38) sts with col A and work ribbing as for back. Begin stripe pattern for body and at the same time increase 1 st each side every 6th row 8(9,10,11) times. When the sleeve is 10(11,12,13)" long take a safety pin and mark the center of the sleeve top and bind off all sts.

Finishing: Three needle BO for shoulders. Transfer the shoulder sts for both the front and the back onto separate needles and with the right sides facing, and holding both needles in your left hand, knit together 1 st from each needle, do this one more time and then bind off in the normal way. Cont to knit together 1 st from each left hand needle and BO until no sts remain. Repeat for second shoulder. Set in sleeves, using the safety pin as a guide, line up the center of the sleeve with the shoulder seam and sew in sleeves. Sew up side seams and sleeve seams.
Neck: using 16” circular needle and col A pick up about 72(76,80,84) sts and work 5 rounds in K2-P2 ribbing, then change to col B and work another 5 rounds. BO loosely. Fold neck band in half and sew down on the inside of the neck.