DIY Crochet Swimsuit Top Pattern Best For Beach Days

This stylish crochet swimsuit top pattern is your new favorite summer project. Perfect for beach days, pool parties, or festivals, this pattern walks you through creating a customizable and flattering bikini top from scratch. With easy-to-follow instructions and sizing adjustments for small to large busts, this design is beginner-friendly while still delivering a polished look.

Crochet Swimsuit Top

The pattern includes shaping the bra cups, adding decorative edging, crafting straps, and securing a comfortable under-bust band. It’s a handmade piece that combines comfort and style—plus, it's totally customizable in color and embellishment. Whether you're a crochet newbie or a seasoned pro, you'll love making (and wearing) this swimsuit top.

Materials Needed

Crochet hook (size appropriate for your yarn)
Cotton or stretch yarn (preferably swim-safe)
Scissors
Tapestry needle

Making the Bra Cup (First Piece)

Create a loop.
Insert hook and chain 29 for Small (Medium: 35, Large: 45).
Add 2 extra chains (this acts as your first double crochet).
Double crochet into the 3rd loop from the hook.
Continue with double crochets until the end (30 total).
Chain 2 and turn.
Decrease at beginning and end of each row for shaping.
Continue until desired bra cup size is achieved.

Edging and Shaping the Cup

Chain 1 or 2.
Work single crochets around the entire triangle.
Add 2 single crochets into each double crochet.
At each turn, chain 1 and single crochet into the same loop to maintain shape.
Finish with a slip stitch at the center.

Adding Decorative Loops

Turn your work to the loop edge.
Chain 1 or 2, then work 3 double crochets in each loop.
Skip 2 loops, slip stitch into the third.
Chain 1 or 2, then add 2 double crochets in the same loop.
Repeat this pattern to the end.
Finish with a slip stitch and cut off yarn.

Repeating for the Second Cup

Repeat all the steps above to create the second bra cup.

Creating the Bra Strap

Make a loop and secure it to the top corner of one cup.
Chain 1 or 2, then work 2 double crochets in the same space.
Skip 2 loops, slip stitch into the third, chain 2, and work 2 double crochets.
Continue this pattern to create the strap.

Making the Neck Tie

Chain 2, double crochet in the same space.
Chain 2, turn, double crochet in the middle space between previous stitches.
Repeat until the string reaches the desired length.

Cut off yarn.

Attaching the Under-Bust Strap

Double the yarn for extra strength.
Create a loop and chain for the under-bust strap.
Weave the strap through the base of both bra cups, skipping 2 double crochets each time.