Meets the Welpr Standard
Youswim
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- YouswimSee price
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Best Non-Toxic Women's Swimwear
We vetted women's swimwear against the Welpr Standard and here are our top picks.
Cofounder & Product Curator
Medical Reviewer, PhD
Here's what we look for:
- Natural fibers like organic cotton, linen, hemp, and wool
- Minimal synthetics, free from PFAS and bisphenols
- Low-impact or plant-based dyes instead of azo dyes
- Trusted third-party certifications like GOTS & OEKO-TEX
- Transparent sourcing, materials, and manufacturing practices
Best Non-Toxic Women's Swimwear
On Welpr, terms like "non-toxic," "safer," "cleaner," "healthier," and "vetted" are editorial labels based on our own standard for product assessment. They are not guarantees, certifications, or medical claims. Learn more.
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Meets the Welpr Standard
Natasha Tonic
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- Natasha TonicSee price
Meets the Welpr Standard
Organic Basics
Where to buy
- Organic BasicsSee price
Meets the Welpr Standard
Araks
Where to buy
- AraksSee price
Meets the Welpr Standard
Negative Underwear
Where to buy
- Negative UnderwearSee price
Meets the Welpr Standard
MASA Swimwear
Where to buy
- MASASee price
Meets the Welpr Standard
Montce
Where to buy
- MontceSee price
How to Swap to Non-Toxic women's swimwear:
Here's how to swap to non-toxic women's swimwear:
What to know about women's swimwear
Swimwear sits directly against your skin for extended periods, often in heat, water, and sun. This combination can increase how much your skin absorbs from the fabric itself. Welpr focuses on the materials, dyes, and chemical treatments used in swimwear because these factors determine what's actually resting against your body.
- Most conventional swimwear is made almost entirely from synthetic fabrics like nylon and polyester, which may carry chemical residues from dyes, finishes, or coatings.
- Swimwear worn frequently — especially by kids or during pregnancy — deserves extra attention since exposure adds up over time.
Review what you already own
Check the care labels on your current swimsuits to see what they're made of and how they were produced. Look for fiber content, any finish or treatment claims, and whether the brand shares details about its dyes or manufacturing.
- If the label lists only synthetic materials with no mention of dye safety, certifications, or chemical-free treatments, it's worth flagging for replacement over time.
- Start with the swimsuit you wear most often or the one your child wears, since frequency of use and skin contact make those the highest priority.
Get more from the swimwear you have now
If you're not ready to replace your current swimsuit, a few simple habits can reduce what your skin picks up from the fabric. These small steps are especially helpful for suits you wear often.
- Wash new swimsuits at least once before wearing them to help remove residual dyes and chemical finishes from manufacturing.
- Rinse your swimsuit with fresh water right after each use — this helps wash away chlorine, salt, and loosened fabric residues before they sit against your skin.
Choose cleaner swimwear
Look for swimwear made primarily from natural fibers like hemp, linen, or organic cotton, or blends that keep synthetics to a minimum. When stretch materials like elastane or spandex are included, they should be a small percentage and free from PFAS and BPA.
- Prioritize brands that use low-impact or plant-based dyes, avoid azo dyes, and hold certifications like GOTS or OEKO-TEX® — but also look for brands that are transparent about their full production process.
- Click the button above to shop Welpr Approved women's swimwear.
Camille May
Cofounder & Product Curator
Camille May is the co-creator of Welpr and a guide for clean living. After selling her last company in the health food space, she went non-toxic while working to heal an autoimmune condition....
Olushola M. Awoyemi
Medical Reviewer, PhD
Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology,...