Looking for a free crochet bikini or swimsuit pattern that actually fits YOUR body? I’ve got you covered — literally. 
Below you’ll find 20 free crochet bikini and swimsuit patterns, including bikini tops, bikini bottoms, matching sets, and full one-piece swimsuits for every single size-inclusive from XS to 5XL.
Never made crochet swimwear before? No stress, lovelies. There are beginner-friendly options with step-by-step video tutorials, plus my complete guide to swim-safe yarns (this part is IMPORTANT regular yarn will sag the second it gets wet).
Jump to what you need:
– Crochet Bikini Tops
– Crochet Bikini Bottoms
– Crochet One-Piece Swimsuits & Monokinis
– Best Yarn for Crochet Swimwear
– FAQ
And if you’ve never made a crochet swimsuit before, not to worry because there are beginner-friendly options with step-by-step video tutorials that you can follow.
Not sure about how crochet bikinis work? If you have plenty of questions, you can go and check out this FAQ about Crochet Bikinis & Swimsuits list here. It covers questions like “Does crochet bikinis sag” or “Are they see-through?”…
I will also share with you the best crochet swimwear yarn to use and how to use them. Including special wash and care methods.
All crochet patterns cover all sizes from A to G Cups to XS – 5XL bottoms because making an all-size-inclusive design matters to me. Plus they are all easily adjustable too.
If you are more of a visual person, I’ve got you covered. I have all these patterns in my Video tutorials that you can watch on my YouTube channel instead.
And if hard copies and printables are your preferred option, then head over to my pattern store where all patterns are inexpensive and come with no distracting advertisements and plenty of guided images.
Collette Crochet Monokini Swimsuit
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Things You Need for the Perfect Crochet Bikini / Swimsuit 🧶
Before you go off with ANY yarn, read this first. Crochet Swimsuits require elastane for them to stretch and retract back into place.
The purpose of Swim Yarn is for it to be lightweight yet strong enough to hug your body, especially when wet!
Here are two of my favorite Crochet bikini & Swimsuit yarns:
Cascade Fixation Yarns is a great choice for crocheting bikinis and swimsuits due to its blend of cotton and elastic, which provides the perfect stretch and durability needed for any swimwear.
For this yarn, you will need a hook size of 2.25mm to 2.5mm. I like the crochet hooks from Susan Bates and Clover. They work really well for tighter and smaller stitches.
Related Post: Cascade Fixation Yarns for Crochet Swimwear
Alize Diva Stretch, on the other hand, is a lightweight microfiber acrylic yarn with elastane, It is a quick-drying yarn that is super stretchy, which would need some getting used to.
Another great thing about this yarn is that it has a sheer finish, almost similar to regular swimsuit material and It also offers plenty of gorgeous colors to choose from.
The best hook to use would be a much smaller hook size between 1.5mm – 2.0mm.
Another thing you would need when making crochet bottoms are round faced elastic band no larger than 1.2mm
Are Crochet Swimwear See-Through? 👀
Crochet bikinis & swimsuits can vary in transparency depending on the design, pattern, and thickness of the yarn used when creating a suit.
In general, crochet swimwear made from larger crochet hooks and bigger stitches will be more see-through as compared to those made from smaller hooks or tighter stitches.
It’s also worth noting the transparency of lighter color yarn and blend may vary when wet, as the fibers can become more transparent when soaked in water. But this will not happen with the yarns mentioned earlier.
If you’re still concerned about it being see-through, you can always add a nude lining on the inside of your swimwear and add cup inserts.
Free Crochet Bikini Top Patterns
Whether you're a triangle top girlie or need real support for a bigger bust, these bikini top patterns come in every style and every size.
How to crochet a Bralette – Easy & Free Pattern + Video
Effortlessly chic, the Penelope Crochet bralette offers a stunning black and white design perfect for swimming or lounging. This bralette is easily adjustable and written for all sizes.
Textured Crochet Bralette Crop Top | Free Pattern & Video Tutorial 📺
Greece inspired colors and pretty alpine texture is what makes this free crochet bralette and crop top pattern fun and quick to make.
One Bralette – Two Fun and Easy Styles | Free Crochet Pattern
Check out this free crochet bralette pattern and see how you can get two styles out of it. Sizes include Cup size A to F
Quick & Comfortable Crochet Bralette | Free Pattern & Video Tutorial
Check out the most comfortable Crochet Bralette Bikini Top you need to make. Free Crochet Pattern & Video Tutorial
Quick Crochet Bralette Bikini Top | Free Crochet Pattern
Looking for a quick crochet bikini top to make in under 2 hours? This free crochet bralette/bikini top pattern is the one to make perfect for any beginner.
Festival Tassel Crop Top | Free Crochet Top Pattern
This Festival crochet crop top is fun and frilly and a great step up for any crochet beginner. The mesh V shape panel and frilly tassels are a fun addition giving it some serious bohemian and hippie vibe.
Fun & Free Crochet Bralette Pattern + Video Tutorial
Looking for a fun and free crochet bralette pattern? Check out our tutorial made for all sizes for a stylish DIY summer project. Video Tutorial included
How to Crochet a Crop Top with Squares | Free Pattern + Video
Learn the easy way on how to crochet a crop top using only granny Squares and Triangles. Free pattern and video tutorial available.
How to make a Pineapple Crochet Halter Crop Top | Free Pattern
Learn how to make our favorite pineapple crochet halter crop top with this free pattern.
Easy Crochet Bralette You Will Love | Free Pattern & Video
With a fun front twist, check out this easy and free Crochet Bralette pattern that you can make in no time that you will truly love. Video tutorial included.
Free Crochet Bikini Bottom Patterns
From cheeky to high-waisted to string, pick your coverage, pick your size (XS–5XL), and let’s hook it up
Cheeky Bikini Bottom Perfect for Beginners | Free Crochet Pattern
Sunny and Cheeky Crochet Bikini Bottom pattern, perfect for beginners. Grab the free written pattern or watch the video tutorial here
How to Crochet a String Bikini Bottom | Free Pattern & 📺 Video Tutorial
How to crochet a String Bikini Bottom for beginners - grab the free Pattern and watch the step-by-step Video Tutorial here
Quick and Easy Crochet String Bikini Bottom | Free Pattern & Video
Here is a quick and easy textured string bikini bottom that is completely adjustable for all sizes.
High Waist Crochet Bikini Bottom made under 2 hours | Free Pattern & Video
This Free High Waist Crochet Bikini Bottom pattern is a great project to make this Summer that is quick and can be made under 2 hours. Full Video pattern included
Cheeky Crochet Bikini Bottom with Double-Sided Bands | Free Pattern & Video Tutorial 📺
This Sahara crochet bikini bottom offers a stunning double-sided band, that is fun and modern, perfect all year round.
Cheeky crochet bikini bottom for all sizes | Free pattern + Video
With a chic pop of black and white, this sassy cheeky crochet bikini bottom is beginner-friendly and perfectly functional for swimming or just splashing around at the beach
Cheeky Chevron Crochet Bikini Bottom | Free Pattern
Make your own cheeky crochet bikini bottom project with this free crochet chevron pattern.
The Ultimate Brazilian Bikini for Beginners | Free Crochet Pattern
Check out my juicy tips on how to create this free step-by-step Brazilian Crochet Bikini pattern. Perfect for beginners.
Crochet One-Piece Swimsuits & Monokinis
Yes, you can crochet a full swimsuit and yes, it’ll stay put when you swim. These one-pieces prove it.
Fun & Flirty Crochet One Piece Swimsuit 👙 | Free Crochet Pattern
This Crochet Monokini Swimsuit is fun & flirty with lots of room for play. Make this swimsuit with the free written pattern available
After Care
🫧 Always read the label on your yarn sleeve before washing. Crochet bikinis & swimsuits do not need to be blocked and ideally should be hand washed in cold water and laid flat to dry.🧼
FAQ
Can you actually swim in a crochet swimsuit?
Yes — IF you use the right yarn. A cotton-elastane blend like Cascade Fixation stretches, retracts, and dries quickly. Regular cotton will sag when wet.
How much yarn do I need for a crochet bikini?
Most bikini tops and bottoms need just 1–2 balls per piece — even in 4XL–5XL. Each pattern above lists exact yardage per size. Not sure? Use my free yarn calculator
Are crochet bikinis see-through?
They can be if you use big hooks and loose stitches. Smaller hooks + tighter stitches (single crochet, half double crochet) keep things opaque — or add a nude lining and cup inserts for extra confidence.
What’s the easiest crochet bikini pattern for beginners?
The Cheeky Crochet Bikini Bottom. It uses basic stitches, full video tutorial, done in a weekend.
Do crochet swimsuits come in plus sizes?
Almost every single pattern on this list includes XS–5XL sizing with full measurement charts. Size-inclusive isn’t an afterthought here — it’s the whole point. 💕
Looking for more answers? I answered more questions here in my Crochet Bikini & Swimsuit FAQ.
Watch The Playlist Here
If you would like to see more video tutorials like this you can check them out here on the blog or Subscribe to my Video Channel on YouTube.
If you would like to purchase a pattern you can get them from the Pattern Store here. These PDF printables come Advertisement Free with full step-by-step picture-guided images to guide you throughout the entire process.
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And if you like these styles, then join our mailing list and Subscribe to all the fun and free crochet patterns. No Spam just Crochet!
And that’s a wrap. If you have any questions about any of these patterns, do get in touch with me by dropping a comment below.
If you’re on social media, don’t forget to tag me @theknottylace, I would love to see your work!
Happy hooking,
Shaz 🧶
