The Cloudberry Romper: A Free Knitting Pattern for a Simple, Ruffle-Trimmed Baby Onesie

Introducing the Cloudberry Romper: A Sweet & Simple Knitted Baby Onesie

Get ready to create the most adorable summer layette piece for your little one! The Cloudberry Romper is a charming, seamless baby onesie featuring delicate ruffled edges that add a vintage-inspired, feminine touch. Knit from the top down in one piece, this pattern is perfect for confident beginners looking to expand their skills. The soft, breathable cotton yarn ensures your baby stays cool and comfortable, while the simple stockinette stitch body provides a clean canvas for the sweet ruffle detail. Whether you're a seasoned knitter or just starting out, this free pattern will guide you through creating a beautiful, heirloom-quality garment.

Materials Needed

Before you begin, gather the following supplies. The pattern is written for three sizes: 0-3 months (3-6 months, 6-9 months).

• Yarn: DK weight cotton yarn (e.g., Lion Brand 24/7 Cotton) in Main Color (MC) - 250 (300, 350) yards, Contrast Color (CC) - 50 yards
• Needles: US 6 (4.0 mm) circular needles (16-inch and 24-inch) and double-pointed needles (DPNs) for sleeves, or size needed to obtain gauge
• Gauge: 22 stitches and 30 rows = 4 inches in stockinette stitch, blocked
• Notions: Stitch markers, stitch holders or waste yarn, tapestry needle, scissors, and two small buttons (optional, for back neck closure)

Step-by-Step Instructions

Abbreviations

• CO: Cast on
• K: Knit
• P: Purl
• K2tog: Knit two together
• M1L: Make one left (increase)
• M1R: Make one right (increase)
• St(s): Stitch(es)
• RS: Right side
• WS: Wrong side
• BO: Bind off
• PM: Place marker
• SM: Slip marker
• yo: Yarn over

Yoke (Neck to Underarm)

The romper is worked seamlessly from the top down. The yoke is knit in the round.

1. With MC and 16-inch circular needle, CO 56 (60, 64) sts. Join to knit in the round, being careful not to twist.
2. Knit 4 rounds for neckband.
3. Round 1 (Increase round): K2, M1L, K8 (9, 10), M1R, K2, PM, K2, M1L, K8 (9, 10), M1R, K2, PM, K2, M1L, K8 (9, 10), M1R, K2, PM, K2, M1L, K8 (9, 10), M1R, K2. (64, 68, 72 sts)
4. Round 2: Knit all sts.
5. Repeat Rounds 1-2 until yoke measures 4 (4.5, 5) inches from cast-on edge, ending with a Round 2. You will have approximately 120 (136, 152) sts.

Separate Sleeves

Now you'll divide the work for the sleeves and body.

1. Knit across the first 18 (20, 22) sts (front right), place next 24 (28, 32) sts on a holder (right sleeve), CO 2 (2, 2) sts underarm, knit across next 36 (40, 44) sts (back), place next 24 (28, 32) sts on a holder (left sleeve), CO 2 (2, 2) sts underarm, knit across last 18 (20, 22) sts (front left). (76, 84, 92 sts)

Body

Continue knitting the body in the round.

1. Continue knitting in the round on the 24-inch circular needle until body measures 5 (6, 7) inches from underarm.

Separate Legs

You'll now work each leg separately, back and forth.

1. Knit across the first 38 (42, 46) sts (front). Place remaining 38 (42, 46) sts on a holder (back).

Leg 1

1. Work back and forth on the 38 (42, 46) sts in stockinette stitch (K on RS, P on WS) for 2 (2.5, 3) inches, ending with a WS row.
2. Ruffle Edge (Leg 1): Switch to CC. Knit 1 row (RS).
3. Ruffle Row (WS): P1, *P1, yo, repeat from * to last st, P1. (74, 82, 90 sts)
4. Knit 2 rows. BO loosely.

Leg 2

1. Return the held 38 (42, 46) sts to the needle. Attach MC and work as for Leg 1.

Sleeves

Knit both sleeves in the round using DPNs.

1. Transfer 24 (28, 32) sts from holder to DPNs. Pick up and knit 2 (2, 2) sts from underarm. (26, 30, 34 sts)
2. Knit in the round for 1.5 (2, 2.5) inches.
3. Ruffle Edge (Sleeve): Switch to CC.
4. Ruffle Round: *K1, yo, repeat from * around. (52, 60, 68 sts)
5. Knit 2 rounds. BO loosely.
6. Repeat for second sleeve.

Finishing

1. Weave in all ends with a tapestry needle.
2. Block gently to shape and even out stitches.
3. Sew on 2 small buttons at the back of the neck for easy dressing (optional).

Your Cloudberry Romper is complete! This sweet, ruffled onesie is sure to become a cherished part of any baby's wardrobe. Happy knitting!