This easy crochet bikini top pattern is designed for anyone who wants a lightweight, comfortable, and customizable handmade swim top. Built with simple double crochet shaping, the pattern allows you to adjust both cup height and width for a personalized fit, making it suitable for multiple cup sizes.
Crochet Bikini Top
The clean construction creates a flattering triangle see-through-free structure while keeping the design beginner-friendly. With adjustable waist and neck ties, this crochet bikini top works beautifully for beach days, layering under sheer tops, or styling as a summer festival piece.
Materials
- Lightweight yarn
- 2.5 mm crochet hook
- Tape measure
- Stitch marker
- Scissors
Bra Cup Base
- Start with a slip knot
- Chain based on cup size
- Cup A chain to 2.5 inches
- Cup B chain to 3 inches
- Cup C chain to 3.5 inches
- Cup D chain to 4 inches
- Skip 2 chains
- Work one double crochet in the 3rd chain from the hook
- Make one double crochet in each chain to the end
- In the last chain, work 5 double crochets
- Place a stitch marker in the 3rd double crochet of the 5 stitch group
- Work double crochet stitches down the opposite side of the foundation chain
Building the Cup
- Chain 2 and turn
- Skip the first stitch
- Double crochet in each stitch until reaching the marked stitch
Remove the marker
- Work 5 double crochets into that stitch
- Place the marker back into the 3rd double crochet
- Double crochet in every remaining stitch to the end
Repeat this row until desired cup width is reached
- Cup A width 5 inches
- Cup B width 6 inches
- Cup C width 7 inches
- Cup D width 8 inches
- Make a second identical cup
Joining the Cups
- Chain 5 from the corner of the first cup
- Join to the corner of the second cup with a slip stitch
- Make sure both cups are facing the same right side
Waistband and Side Straps
- Measure waist and subtract the total width of the joined cups
- Divide the remaining measurement by two
- Chain that length from the side of the first cup
- Attach yarn to the far side of the second cup
- Chain the same number of stitches
- Double crochet across the side chains
- Continue double crochet evenly along the bottom of the first cup
- Double crochet across the center chain bridge
- Double crochet along the second cup
- Double crochet across the final side chain section
- Optional add a second row of double crochet for extra support
Top Straps
- Remove the stitch marker from the top peak of one cup
- Attach yarn with a slip knot
- Chain approximately 55 inches or desired length
- Skip the first chain
- Single crochet in every chain back toward the cup
- Slip stitch into the next stitch on the cup to secure
- Fasten off
- Repeat for the second cup
Finishing
- Weave in all loose yarn ends on the wrong side
- Criss cross the top straps through the back waistband if desired
- Tie securely and adjust for fit
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