Baby Knitting Patterns

Butter Rib Snowflake Newborn Romper: Free Knit Pattern

OEMGrid: Original Essentials, Maker Tools & Artisan Crafts • October 28, 2026

Introduction

This little romper is made for the newest baby in your life: a soft, stretchy one-piece in butter-yellow worsted cotton that slips on easily and moves with every wiggle. The all-over 2x2 ribbing gives it a gentle, forgiving fit, while the short 1x1 rib sleeves keep tiny arms cozy without bulk. A single white six-pointed snowflake, embroidered on the center chest, adds a quiet, starry touch that makes it feel a little special. It knits up quickly in the round, so it is a lovely gift for a baby shower or a first grandchild.

Materials Needed

Yarn: Worsted weight (Category 4) cotton, approximately 200 yards (183 m) butter yellow (MC) and 10 yards (9 m) white (CC).
Needles: 4.5 mm (US 7) circular needle with a 16" (40 cm) cable, and a set of 4 double-pointed needles in 4.5 mm (US 7).
Notions: Stitch markers (4), stitch holders or scrap yarn, tapestry needle, scissors, tape measure.
Finished size: To fit newborn 0–3 months: chest circumference 16" (40.5 cm), length from shoulder to crotch 14" (35.5 cm), sleeve length 6" (15 cm).

Abbreviations

CO: cast on
BO: bind off
k: knit
p: purl
k2tog: knit two stitches together (a right-leaning decrease)
ssk: slip one stitch knitwise, slip the next stitch knitwise, then knit both together through the back loops (a left-leaning decrease)
st(s): stitch(es)
rnd(s): round(s)
beg: beginning
MC: main color (butter yellow)
CC: contrast color (white)
WS: wrong side

Gauge

20 sts and 24 rows = 4" (10 cm) in 2x2 ribbing, slightly stretched. Knit a small swatch in 2x2 rib, stretch it gently to the width it will sit at on the body, and measure across the middle to check your stitch count before you begin.

Tips Before You Start

Ribbing pulls in, so measure your gauge slightly stretched; an unstretched swatch will make the finished romper too small.
When you join the body and sleeves in the round, count the stitches between markers before working the first yoke round: 32 back, 20 sleeve, 32 front, 20 sleeve.
Because the yoke is worked in rib, keep track of where each k2/p2 column sits after every decrease so the pattern stays aligned.
Embroider the snowflake after blocking, not before, so the stitches sit evenly on the finished fabric.

Step-by-Step Instructions

Body (MC)

Rnd 1: CO 80 sts. Join to work in the round, being careful not to twist. Place marker for beg of rnd.

Rnds 1–4: [k2, p2] to end (80 sts).

Rnds 5–40: Work in 2x2 rib as established (80 sts).

Next rnd (armhole division): BO 4 sts, work 32 sts in rib, BO 4 sts, work 32 sts in rib, BO 4 sts, work 32 sts in rib. Place remaining 72 sts on holder.

Sleeves (MC) — make 2

Rnd 1: With DPNs, CO 28 sts. Join to work in the round.

Rnds 1–4: [k1, p1] to end (28 sts).

Rnds 5–24: Work in 1x1 rib as established (28 sts).

Next rnd: BO 4 sts, work 20 sts in rib, BO 4 sts. Place remaining 20 sts on holder.

Yoke

Set-up: With circular needle, knit across 32 sts of back, 20 sts of right sleeve, 32 sts of front, 20 sts of left sleeve, placing markers between each section (104 sts).

Rnds 1–4: Work in 2x2 rib as established, maintaining pattern (104 sts).

Rnd 5 (raglan decreases): [Work to 2 sts before marker, k2tog, slip marker, ssk] 4 times (96 sts).

Rnds 6–8: Work even in rib (96 sts).

Rnds 9–20: Repeat Rnds 5–8 three more times (72 sts).

Rnds 21–24: Work even in rib (72 sts).

Rnd 25 (neckline): BO all sts in rib.

Snowflake (CC)

With CC and tapestry needle, embroider a 6-pointed snowflake on the center front using duplicate stitch, following a chart or creating a simple star shape with straight stitches radiating from a center point. Make each arm about 1" (2.5 cm) long, with small branches. Secure ends on the WS.

Assembly and Finishing

Sew the underarm seams where the sleeve openings meet the body, then sew the crotch seam. Weave in all ends on the wrong side. Block lightly by misting with water and patting into shape, then let it dry flat. Embroider the snowflake last, as described above, and secure the ends on the WS.

Pro Tips and Variations

Swap the white snowflake for a tiny embroidered heart or star in a contrasting color for a different seasonal look.
Work the sleeves a few rounds longer for a 3–6 month fit, adding roughly 1" (2.5 cm) of ribbing.
Choose a soft cotton-blend yarn for extra drape, or a cotton-bamboo blend for a slightly cooler, smoother finish.

Also Check Out: We think you'd love this beautiful pattern on our sister site: Crochet Festive Whimsical Holiday Tree Skirt Free Pattern