A great project for using up leftovers from your stash, or for a last minute gift :)
Size: 3-9 months
Yarn: Aran weight yarn of your choice suitable for babies.
Needles: 5.5mm and 5mm needles
Gauge: 16 sts and 22 rows of stockinette stitch per 10 cm (4 inches).
Top part
On 5mm needles, CO 60 sts with the twisted German cast on method.
Join to work in the round: the beginning of round is the middle of the back. Remember to place a marker if you are working on circular needles.
Rnds 1-8: K2, P2 to end
Switch to 5mm needles.
BO all stitches relatively loosely -- I recommend a regular BO on larger needles. If you plan to make a folded edge, a stretchy BO method might be better (this is a relatively uncomplicated option).
Right leg
Put sts from holder to the 5.5mm needles and join yarn. Here it might be smart to leave a tail of yarn which you can use later to sew the crotch together.
Finishing
Sew together at the crotch and all loose ends.
Rnds 1-8: K2, P2 to end
Switch to 5.5mm needles
Rnd 9-13: K all sts
Rnd 14: *K3, Kfb* repeat until last 4 sts in rnd, K4 (74 sts)
Rnd 15-36: K all sts
Left leg
Before separating for each leg, 2 sts are decreased at the crotch:
Rnd 14: *K3, Kfb* repeat until last 4 sts in rnd, K4 (74 sts)
Rnd 15-36: K all sts
Left leg
Before separating for each leg, 2 sts are decreased at the crotch:
Next round: BO 1 st on beg of rnd, K 34 sts, slip last knitted st back on the left needle, pass next st over the last knitted st, then slip st back on right needle. Place 37 sts on holder.
Work 35 remaining sts on the round
K all sts until leg measures 5 cm (2 inches)
Dec rnd: K1, ssk, K to last 3 sts, K2tog, K1
K all sts for next 3 rnds
Repeat these last 4 rnds 4 times in total (27 sts)
K all sts for the next 10 rnds or desired length.
Edging: Seed stitch
K all sts until leg measures 5 cm (2 inches)
Dec rnd: K1, ssk, K to last 3 sts, K2tog, K1
K all sts for next 3 rnds
Repeat these last 4 rnds 4 times in total (27 sts)
K all sts for the next 10 rnds or desired length.
Edging: Seed stitch
Switch to 5mm needles.
Note: if you are switching colors here like I did, K one round in the new color first without seed st. This is so that the purl bumps on the first round of seed stitch don't pick up the previous color.
Rnd 1: *K1, P1* to end
Rnd 2: *P1, K1* to end
Rnd 2: *P1, K1* to end
Repeat these two rounds 4 times or until desired length.
BO all stitches relatively loosely -- I recommend a regular BO on larger needles. If you plan to make a folded edge, a stretchy BO method might be better (this is a relatively uncomplicated option).
Right leg
Put sts from holder to the 5.5mm needles and join yarn. Here it might be smart to leave a tail of yarn which you can use later to sew the crotch together.
Continue the same way as with left leg.
Finishing
Sew together at the crotch and all loose ends.