The Coastal Drift Cardi: A Free Crochet Pattern for an Airy, Open-Front Sweater

Imagine the gentle rhythm of ocean waves, the warmth of sun-bleached sand, and the cool whisper of a sea breeze—all wrapped into a wearable piece of art. That's the magic of the Coastal Drift Cardi. This free crochet pattern creates a stunning, open-front cardigan with a unique woven shell stitch that mimics the ebb and flow of the tide. The relaxed, drapey fit and soft color transitions make it the perfect layering piece for breezy evenings, coastal getaways, or simply adding a touch of handmade elegance to your everyday wardrobe.

Whether you're a seasoned crocheter or a confident beginner looking for a rewarding project, this pattern is designed to guide you through every step. With its simple construction—worked in flat panels and seamed—you'll be amazed at how quickly this beautiful garment comes together. Let's dive in and create something truly special.

Materials Needed

Before we begin, gather your materials. The Coastal Drift Cardi uses a worsted weight cotton blend yarn, which gives it that perfect combination of drape, durability, and breathability. Here's what you'll need:

Yarn

• Worsted weight cotton blend yarn (e.g., Lion Brand 24/7 Cotton) in 3 shades:
  • Sand (A) – cream/beige
  • Seafoam (B) – light aqua green
  • Deep Teal (C) – dark blue-green
• Approximately 800 (900, 1000, 1100) yards total depending on your size. This is broken down roughly as: 300 (340, 380, 420) yards of Sand, 250 (280, 310, 340) yards of Seafoam, and 250 (280, 310, 340) yards of Deep Teal.

Hook & Notions

• 5.5 mm (I-9) crochet hook
• Tapestry needle for weaving in ends and seaming
• Stitch markers (optional, but helpful for keeping track of rows)

Gauge

• 14 stitches x 8 rows = 4 inches in shell stitch pattern (after blocking). Be sure to check your gauge to ensure your finished sweater fits as expected.

Step-by-Step Instructions

Now, let's get to the fun part! Follow these detailed instructions carefully, and you'll have your very own Coastal Drift Cardi in no time. The pattern is written for sizes S (M, L, XL), with a finished bust measurement of 38 (42, 46, 50) inches.

Stitch Abbreviations

• ch = chain
• sc = single crochet
• dc = double crochet
• sk = skip
• st(s) = stitch(es)
• sl st = slip stitch
• sp = space
• RS = right side
• WS = wrong side

Special Stitch: Shell Stitch (worked over 4 sts)

In the same stitch or space, work (2 dc, ch 1, 2 dc). This creates the beautiful, textured shell motif that defines this cardigan.

Pattern Notes

The cardigan is worked flat in two panels (back and front) from the bottom up, then seamed at the shoulders and sides. The sleeves are worked directly into the armhole openings. Color transitions are made by changing yarn colors at the end of each row as indicated. Always work with the right side facing you unless otherwise noted.

Back Panel

With color A, ch 92 (102, 112, 122).

Row 1 (RS): Sc in 2nd ch from hook, *sk 2 ch, shell st in next ch, sk 2 ch, sc in next ch; repeat from * across. Turn. (18 (20, 22, 24) shells)

Row 2: Ch 3 (counts as dc), sk first sc, *shell st in ch-1 sp of next shell, sk 2 dc, sc in next sc; repeat from * across, ending with dc in last sc. Turn.

Repeat Row 2 for the pattern, working color changes as follows:

• Work Rows 1–8 with color A
• Work Rows 9–16 with color B
• Work Rows 17–24 with color C
• Repeat this color sequence for the remainder of the panel

Work even (without increasing or decreasing) until the piece measures 20 (21, 22, 23) inches from the beginning, ending with a WS row.

Shape Shoulders

Next row (RS): Sl st across first 6 (7, 8, 9) sts, work in pattern across to last 6 (7, 8, 9) sts, turn, leaving remaining sts unworked. (This creates the shoulder slope.)

Next row: Work in pattern across. Fasten off.

Left Front Panel

With color A, ch 46 (51, 56, 61).

Row 1 (RS): Sc in 2nd ch from hook, *sk 2 ch, shell st in next ch, sk 2 ch, sc in next ch; repeat from * across, ending with sc in last ch. Turn. (9 (10, 11, 12) shells)

Row 2: Ch 3, sk first sc, *shell st in ch-1 sp of next shell, sk 2 dc, sc in next sc; repeat from * across, ending with dc in last sc. Turn.

Repeat Row 2 for the pattern, following the same color sequence as the back panel. Work even until the piece measures 15 (16, 17, 18) inches from the beginning, ending with a WS row.

Shape Neck

Next row (RS): Work in pattern across first 6 (7, 8, 9) shells, turn, leaving remaining sts unworked. (Neck edge)

Continue in pattern, decreasing 1 shell at the neck edge every row for 3 rows. (3 (4, 5, 6) shells remain)

Work even until the piece measures the same as the back panel to the shoulder. Fasten off.

Right Front Panel

Work the same as the left front panel, but shape the neck on the opposite side (mirror image). This means you'll work across the shells, then turn and work the neck shaping on the other end of the row.

Finishing

Now it's time to bring your cardigan together!

Sew shoulder seams using your tapestry needle and a whip stitch or mattress stitch.

Sew side seams, leaving an 8 (9, 10, 11) inch opening at the top for the armholes.

Sleeves

With RS facing, attach color A at the underarm seam.

Work in pattern around the armhole opening, working 1 shell st in each row end. This means you'll work a shell stitch into the side of each row of the body panels.

Work even in pattern, following the same color sequence as the body, until the sleeve measures 12 (13, 14, 15) inches from the underarm. Fasten off.

Edging

This is the finishing touch that gives your cardigan a polished, professional look.

With color A, sc evenly around the entire front opening and neckline. Work 1 row of sc, then 1 row of reverse sc (crab stitch) for a clean, decorative finish. The crab stitch is simply a single crochet worked in the opposite direction (from left to right if you're right-handed).

Fasten off and weave in all ends with your tapestry needle.

Block to measurements. This is crucial for the shell stitch to open up and drape beautifully. Lay the cardigan flat, pin it to the correct dimensions, and lightly steam or mist with water. Allow it to dry completely.

And there you have it—your very own Coastal Drift Cardi! This beautiful, textured sweater is perfect for layering over a simple tank or dress. The open-front design and flowing sleeves make it effortlessly chic, while the coastal color palette brings a touch of serenity to any outfit. Enjoy wearing your handmade creation, and don't forget to share your finished project with the crochet community!