“Lightweight yarns under Category 3 (DK, Sport, or Fingering weight) are ideal such as Cascade Fixation or Alize Diva Stretch. 100% Cotton carry too much water weight when wet”
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Have you ever wondered if there are special yarns used for crochet swimwear? Well, the answer is yes there is the best yarn for swimwear! And I’ll share with you all the details about making your first crochet swimsuit or crochet bikini with the best yarns, that I have personally tried and tested!
And while you’re here, don’t forget to check out all the crochet bikinis and swimsuit patterns here 👈
For those who have never worn the “right” crocheted/ knitted swimsuit or bikini before, would say that it will sag and it is heavy because it carries water weight and will fall to your knees!
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If you have never heard of Spandex, well Spandex is an elastic synthetic fiber, also famously known as Lycra. It is much stronger and a lot more durable than natural fiber.
This elastane fabric is made of natural and synthetic fibers to provide the stretch and recovery that you need in any crochet project that you intend to get wet in.
Cool right! That’s why this is so important to look for the best stretchable yarns with elastane to maintain the shape and provide that extra stretch.
But remember not all spandex yarn works the same. It would have to be lightweight preferably below a category 3 like a DK or fingering yarn.
Plus it should also be either cotton or microfiber. Now, where can I find these yarns you might ask?
Well before we get there, why don’t you have a look at a few of my favorite Free Crochet patterns here:
Gaia Brazilian Bottom
Sahara Bralette
Collette Monokini Swimsuit
How to Crochet a Bikini - Video Playlist
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.
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Best Yarns for Crochet Bikinis and Swimsuit
#1. Cascade Fixation: The Best Cotton Yarn for Crochet Swimwear
Cascade Fixation: Personally I prefer Cascade Fixation yarns and have been using them for years!
They are inexpensive yarns and are easily available here in the States. I usually get mine directly from the seller (in bulk) or you can also find them on Amazon and on Etsy. It is a DK weight cotton yarn and I would normally use a 2.0 – 2.5mm crochet hook.
Another great thing about this yarn is that it dries fast, doesn’t shrink, does not color bleed, and best of all comes in a variety of solid and splash colors! Read more about what I like about cascade fixation yarns here
Sahara Bikini Set Using Cascade Fixation Yarn
#2. Alize Diva Stretch
Alize Diva Stretch: I only recently started using this yarn because they are usually shipped from Europe and take a while to deliver. (For those of you living in Europe this is a great option ie cheaper shipping!)
And of course, you can find them on Amazon and Etsy which is fantastic! This yarn quickly became one of my favorite yarns to use for summer.
It is a lightweight microfiber acrylic yarn with elastane and the best hook to use would be 1.5mm – 2.0mm. Alternatively, you can also double up the yarn and use a bigger hook size.
This yarn is extremely stretchy and you would need some getting used to it. It is also quick-drying, with plenty of gorgeous colors and did I mention super stretchy?! LOL.
Another great amazing thing about this yarn is that it has a sheer finish just like a regular swimsuit.
So if you are used to working with a thinner yarn, then this is your perfect match!
- Zen Halter crop top using Alize Diva
#3. Nako Comfort Stretch
Nako Comfort Stretch: This yarn is very similar to Alize Diva Stretch too. Its composition includes microfiber acrylic with a touch of polyester. It is also a lightweight yarn and super stretchy.
The best hook to use would also be between 1.5mm – 2.0mm. I’ve only used them once and since I find them closely similar to the Alize yarn and not easily accessible here where I like, I prefer to stick with Alize Diva instead.
Although these are not readily available here in the States, however, you can find them on Etsy and eBay as well. And if you’re living in Europe, then you’re in luck again!
NEW! Polyamide and Elastane Swimwear Yarns to Consider
Here are some other great water-approved best yarn for crochet bikinis that have popped up in the market recently. And going by its name itself aka Swim, Bikini, and Stretch, and by looking at the type of fiber blends it is made out of, it is safe to say these are also another great option for making your crochet swimwear!
- Swim by Ice Yarns – Polyamide
- Himalaya Bikini Yarn – Polyamide
- Himalaya Celinda Stretch – Acrylic & Elastane
PS: Ive never tried them (yet!). Let me know how you feel about them.
💡 Quick Summary: Best Swimsuit Yarns at a Glance
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Top Cotton Pick: Cascade Fixation (DK weight, highly durable, excellent elasticity).
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Top Microfiber Pick: Alize Diva Stretch (Fingering weight, sheer swimsuit-like finish, super stretchy).
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Best Budget/European Alternative: Nako Comfort Stretch (Microfiber/polyester blend).
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Crucial Tip: Always choose yarns with elasticity (elastane/spandex/polyamide) under a Category 3 weight to prevent sagging.
And if you have any burning questions about the Whys and How’s of crochet bikinis and swimsuits, such as:
🙋♀️ Frequently Asked Questions About Crochet Swimwear Yarns
Q: Can you use 100% cotton yarn for a crochet bikini? A: No. 100% regular cotton yarn will absorb water, become heavy, sag, and lose its shape. You must use a cotton blend that includes spandex, elastane, or polyamide to ensure stretch recovery.
Q: What yarn weight is best for crochet swimsuits? A: Lightweight yarns under Category 3 (DK, Sport, or Fingering weight) are ideal. Heavy yarns carry too much water weight when wet.
You will be able to read up on these 10 Frequently Asked Questions (FAQ) about Crochet Bikinis and Swimsuits here.
And if you are itching to learn more about how to crochet a swimsuit or a bikini, then you will have to check out my step-by-step beginner’s guide right here or just go ahead and browse over to some of my free bikini pattern ideas using these yarns.
If you have other yarn suggestions or ideas, do drop me a comment below.
Happy hooking
Shaz 🧶
