Easy Crochet Bikini Top Pattern You’ll Want to Make for Summer

There is something deeply satisfying about wearing a swimsuit you made with your own hands. The moment you walk onto the beach in a crochet bikini top you crafted yourself, you carry that quiet pride that no store-bought piece can replicate. If you have been wanting to try your hand at a crochet swimsuit but felt intimidated by complex patterns, this guide is exactly what you need. This easy crochet bikini top pattern is designed for beginners and confident beginners alike — simple enough to finish in a weekend, but beautiful enough to wear all summer long.

Whether you are heading to the beach, the pool, a summer festival, or simply enjoying a warm afternoon in the backyard, this crochet bikini top will quickly become your warm-weather staple. Let’s dive in.

Why Make Your Own Crochet Bikini Top?

Before we get into the pattern itself, let’s talk about why so many crochet lovers are ditching the swimwear aisle in favor of handmade tops.

First, fit is everything when it comes to swimwear. Store-bought bikini tops come in generic sizing that rarely accounts for the beautiful diversity of body shapes. When you crochet your own top, you control every measurement. You can adjust the cup depth, the band width, the strap length — everything. The result is a top that fits your body, not a size chart.

Second, handmade crochet swimwear is genuinely unique. You choose the color, the yarn, the trim, the ties. You will never show up to a beach party wearing the same top as someone else.

Third, it is a wonderful crochet project to build your skills. This pattern uses simple stitches — single crochet, half double crochet, and a basic shell stitch — so you get to practice foundational techniques while creating something wearable and useful.

Finally, crochet bikini tops are endlessly customizable. Once you understand the basic construction, you can experiment with colors, stitch patterns, embellishments, and tie styles to create a whole collection of tops for different looks.

Materials You Will Need

Getting the right materials makes a significant difference in how your finished bikini top looks and feels. Here is what you will need before you begin.

Yarn: Choose a cotton yarn or a yarn specifically marketed for swimwear. Cotton holds its shape when wet, dries relatively quickly, and sits comfortably against skin. Look for a smooth, tightly spun cotton in a worsted weight (size 4) or a DK weight (size 3) depending on your preference. Worsted weight will work up faster, while DK weight gives a slightly more delicate look. You will need approximately 200–400 yards depending on your cup size and how long you want the band.

Some popular options among crochet makers include Lion Brand 24/7 Cotton, Paintbox Simply DK Cotton, and Paintbox Simply Worsted Cotton. All of these hold up well in water and maintain their color over time.

Hook: Use a 4.0 mm or 4.5 mm crochet hook for worsted weight cotton. For DK weight, try a 3.5 mm hook. Always check your tension against the gauge below.

Notions: You will need a yarn needle for weaving in ends, scissors, and stitch markers to help track your rows. A measuring tape is essential for checking your gauge and your body measurements.

Optional: You can line the cups with swimwear fabric for extra coverage and support. This requires a small piece of stretch swimwear lining fabric, a needle, and thread. Lining is optional but highly recommended if you want the top to be truly functional in water.

Understanding Gauge

Gauge is one of the most important factors in getting a crochet garment to fit correctly. Even a small difference in gauge can mean a top that is too loose or too tight.

For this pattern using worsted weight cotton and a 4.5 mm hook:

Gauge: 14 single crochet stitches and 16 rows = 4 inches (10 cm) in single crochet.

Before starting your bikini top, crochet a small swatch of at least 20 stitches by 20 rows. Measure the swatch and compare it to the gauge above. If your swatch is larger than 4 inches, try a smaller hook. If it is smaller than 4 inches, try a larger hook. Do not skip this step — it is the secret to a well-fitting handmade garment.

Sizing Guide

This pattern is written for a range of sizes. Measure yourself before beginning and choose the size closest to your measurements. It is better to go up a size if you are between sizes, as you can always add shaping through the tie strings.

• Small: Bust 32–34 inches
• Medium: Bust 34–36 inches
• Large: Bust 36–38 inches
• X-Large: Bust 38–40 inches
• 2X-Large: Bust 40–42 inches

Cup depth (measured from the center of your collarbone to just below your bust) will determine how tall you make your triangle cups. For a smaller cup, work fewer rows. For a larger cup, work more rows and increase more gradually.

Abbreviations Used in This Pattern

Before you begin, familiarize yourself with the abbreviations used throughout. This pattern is written using standard US crochet terminology.

• ch — chain
• sl st — slip stitch
• sc — single crochet
• hdc — half double crochet
• dc — double crochet
• st — stitch
• sp — space
• rep — repeat
• RS — right side
• WS — wrong side
• BLO — back loop only

The Pattern: Easy Triangle Crochet Bikini Top

This pattern creates two triangle cups that are joined at the center front. The ties are crocheted directly onto the cups, making for a clean, finished look with minimal sewing.

Part One: Making the Cups (Make Two)

Each cup begins at the bottom point of the triangle and works upward, increasing on each side to create the triangular shape.

Foundation: Begin with a magic ring, or chain 4 and join with a slip stitch to form a small ring.

Row 1 (RS): Chain 1, work 3 single crochet into the ring. Turn. (3 sts)

Row 2: Chain 1, 2 sc in the first stitch, 1 sc in the middle stitch, 2 sc in the last stitch. Turn. (5 sts)

Row 3: Chain 1, 2 sc in the first stitch, sc in each stitch across to the last stitch, 2 sc in the last stitch. Turn. (7 sts)

Rows 4 through 16: Repeat Row 3, increasing one stitch at each end of every row. At the end of Row 16, you will have 33 stitches.

For a medium cup size, continue through Row 16 as written. For a larger cup, continue the increases through Row 18 or 20 (ending with 37 or 41 stitches). For a smaller cup, stop at Row 14 (ending with 29 stitches).

Do not fasten off. Leave a long tail for seaming.

Repeat to make the second cup. Once both cups are complete, hold them with right sides facing each other and slip stitch or single crochet the two center edges together using your yarn needle and the long tail, creating a seam at the center front. This seam becomes the V-point of your bikini top. Alternatively, you can join them with a small strip of chain stitches for a peek-a-boo gap effect.

Part Two: The Band

The band runs along the bottom edge of both cups and wraps around your ribcage to tie in the back. It is crocheted directly onto the bottom edge of the joined cups.

With the right side of the joined cups facing you, attach your yarn at the bottom left corner of the left cup.

Row 1: Chain 1, then work 1 single crochet in every stitch along the bottom edge of both cups. You should have approximately 64–70 stitches depending on your cup size. Turn.

Row 2: Chain 1, sc in each stitch across. Turn.

Row 3: Chain 1, sc in each stitch across. Turn.

Row 4: Chain 1, sc in each stitch across. Turn.

Work 4 rows of single crochet total for the band body. This creates a band approximately 1 inch tall. If you prefer a wider band (better for larger cup sizes as it provides more support), work 6 to 8 rows.

Tie Extension (Left Side): At the end of the last band row, chain 80 to 100. This forms the left tie. Slip stitch back down the chain to create a finished cord. Fasten off.

Tie Extension (Right Side): Attach yarn at the right end of the band. Chain 80 to 100 and slip stitch back down. Fasten off.

Weave in all ends.

Part Three: The Neck Ties

The neck ties attach to the top corner of each triangle cup and tie behind your neck to provide the main structural support.

Left Neck Tie: Attach yarn at the top left corner of the left cup. Chain 80 to 100. Slip stitch back down the chain for a solid cord. Fasten off.

Right Neck Tie: Attach yarn at the top right corner of the right cup. Chain 80 to 100. Slip stitch back down. Fasten off.

Weave in all ends.

Part Four: Edging (Optional but Recommended)

A simple edging along the top diagonal edges of the cups polishes the finish and prevents the edges from curling. Working with the right side facing you, attach yarn at the top left corner of the left cup and work a row of single crochet along the diagonal edge, across the center seam, and along the diagonal edge of the right cup.

For a decorative shell edging, work: skip 2 stitches, work 5 double crochet into the next stitch, skip 2 stitches, slip stitch into the next stitch. Repeat this shell pattern across the top edge. This gives a lovely scalloped detail that photographs beautifully.

Finishing Touches

Once your top is fully assembled, take a moment to block it before wearing. Blocking cotton crochet is simple — wet the piece thoroughly, gently squeeze out excess water (do not wring), and lay it flat on a clean towel or blocking mat. Pin or shape the cups into their intended triangle shape and allow to dry completely. Blocking relaxes the stitches, evens out any tension inconsistencies, and gives your top a professional, polished appearance.

If you choose to add a lining, cut two triangle pieces of swimwear lining fabric that match the shape of your cups. Fold the raw edges under and hand-stitch the lining to the inside of each cup using a needle and thread. The lining will not be visible from the outside and adds an extra layer of coverage that many wearers prefer.

Customization Ideas

One of the greatest joys of making your own crochet bikini top is the ability to make it entirely your own. Here are some ideas for personalizing this pattern.

Color Play: Try a bold color-blocked look by crocheting each cup in a different color. Or work the band in a contrasting color for a sporty stripe effect. Two-toned ties in complementary colors are another easy way to add visual interest.

Stitch Variations: Once you are comfortable with the basic pattern, try swapping out the single crochet body for a mesh stitch. Work alternating chain-1 spaces and single crochets in a grid pattern for an open, beachy look. Keep in mind that open stitches mean less coverage, so you may want to add lining.

Embellishments: Crochet small flowers or shells separately and stitch them to the center front joining point or to the top corners where the neck ties attach. Wooden beads or shell beads threaded onto the ties are another charming detail that feels very coastal.

Fringe: After completing your edging, cut lengths of yarn and fold them in half through the edge stitches at the bottom of the cups to add a playful fringe trim.

Wrap Style: Instead of tie strings at the back, you can extend the band significantly on both sides and wrap the ties around your body twice before tying at the front for a wrap-around style.

Care Instructions for Your Crochet Bikini Top

Taking proper care of your handmade top will keep it looking great all season long. After each wear, especially in saltwater or chlorinated water, rinse the top thoroughly with cool, clean water to remove chemicals and salt that can degrade yarn fibers over time.

Hand wash the top with a gentle detergent or wool wash. Gently squeeze out excess water and lay the top flat to dry away from direct sunlight. Direct sunlight can fade even colorfast cotton yarn over time if exposure is prolonged.

Never put your crochet bikini top in the dryer. The heat can cause cotton to shrink and may distort the shape of the cups.

Store the top flat or loosely folded to prevent the ties from tangling.

Frequently Asked Questions

Can a beginner make this bikini top? Yes, absolutely. If you know how to single crochet, half double crochet, and work increases, you have all the skills you need for this pattern. The construction is straightforward and the shaping comes entirely from simple edge increases.

How long will it take to make? Most crocheters complete both cups in four to six hours and finish the full top in a weekend. If you are newer to crochet, allow a little extra time.

What if I run out of yarn? Always buy a little more yarn than you think you need. Dye lots can vary, and it can be difficult to find an exact match later. For this pattern, buying an extra skein as insurance is always a good idea.

Can I make this without a magic ring? Yes. Instead of a magic ring, chain 4 and join with a slip stitch to form a ring, then work your first row into that ring. The magic ring creates a tighter center point, but the chain method works perfectly well.

Is this top supportive enough for swimming? For light swimming and water play, yes. This style is designed more for sunbathing, beach lounging, and light activity. For more vigorous water sports, you might want to add a lining and use a sturdier yarn.

A Few Tips for Success

Always swatch before starting. It takes twenty minutes and saves hours of frustration.

Keep your tension consistent throughout the cups. Loose tension on some rows and tight tension on others will create an uneven triangular shape.

Use stitch markers to mark the first and last stitch of each row. Increases happen at these marked stitches, and it is easy to accidentally work into the turning chain instead.

When joining the two cups, make sure both right sides are facing in the same direction before seaming. It is easy to accidentally flip one cup and end up with a twist at the center.

Try the top on as you go. After completing your cups and before adding the band, hold the cups up to your body to check the size and coverage. It is much easier to add or remove rows at this stage than after the band is attached.

Final Thoughts

A handmade crochet bikini top is one of those projects that gives back far more than it asks. Yes, it requires a bit of time and attention, but the result is a completely unique, custom-fitted piece of summer wardrobe that you made entirely by hand. There is a special kind of confidence that comes from wearing something you created yourself, and this easy crochet bikini top is the perfect place to experience that feeling.

Whether you are making this for yourself or as a gift for someone who loves the beach, take your time, enjoy the process, and do not be afraid to experiment. Crochet is wonderfully forgiving — stitches can be frogged and reworked, colors can be swapped, and every mistake teaches you something. By the time the warm weather arrives, you could have an entire handmade summer wardrobe waiting for you.

Now grab your hook, pick your favorite cotton yarn, and get started. Summer is calling, and you have a bikini top to make.