ANDie Women's Fiji Lace-Up Back One-Piece Swimsuit
Skip until brand discloses water-repellent coating chemistry; swimsuits commonly use PFAS water-repellents.
ANDie doesn't publicly disclose PFAS content or water-repellent coating treatment specifics for this swimsuit. Swimwear fabrics frequently receive water-repellent coating finishes that historically rely on PFAS-based chemistry.
The better-graded swap
Patagonia
Patagonia Women's Bottom Turn Racerback Bikini Top
90/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Nylon/polyester blend with likely water-repellent coating water-repellent finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What ANDie Women's Fiji Lace-Up Back One-Piece is made of, ingredients and materials
This swimsuit is constructed from a nylon-polyester blend, a standard synthetic base for swimwear that resists chlorine and saltwater degradation well. The 'water-repellent coating' (water-repellent coating) finish applied to the fabric is the chemical flashpoint, water-repellent coating coatings have historically relied on PFAS compounds to achieve quick-dry and water-shedding properties, though some manufacturers have migrated to alternatives not linked to PFAS. Andie has not publicly disclosed which chemistry they use for this product line. Polyester and nylon themselves are stable in normal use and do not leach known endocrine disruptors, but the finish applied to them is the material of concern.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
water-repellent coating (water-repellent coating) finish chemistry
Andie has not disclosed the water-repellent coating formulation. Industry data shows most nylon swimwear at this price point and brand tier still uses legacy PFAS compounds (particularly Teflon-type coating or fluorocarbon-based coatings) rather than newer fluorine-free alternatives. Dermal exposure risk is low in normal swimming, but repeated contact and laundering can leach finish residues.
Polyester shedding (microfibers)
Synthetic blends shed microplastics during wear and washing, particularly with friction and agitation. A swimsuit in regular use sheds at lower rates than activewear, but repeated machine washing accelerates fiber release. No brand-specific testing for this product is available; risk is inherent to the material class.
Elastic and closure hardware degradation
Chlorine and saltwater accelerate degradation of elastic waistbands and metal hardware (typically nickel-plated). Nickel release from corroded hardware can cause contact dermatitis in sensitive users. This is a normal wear issue unrelated to Andie's specific manufacturing but common to all swimwear.
What’s reassuring
Azo dyes and synthetic pigments
No public testing or safety alerts exist for Andie swimwear. Nylon and polyester can be dyed with both compounds of lower concern and restricted azo compounds; reputable manufacturers typically avoid carcinogenic or allergen-forming dyes, but without certifications or disclosure, this cannot be confirmed for this product.
Formaldehyde / VOCs
Formaldehyde-releasing resins are sometimes used in synthetic fabric finishing for crease resistance or color fastness. This product shows no public documentation of such treatment, and swimwear formulations typically avoid heavy formaldehyde finishing compared to dress fabrics. Risk is likely minimal but unconfirmed.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Andie does not maintain a public chemical disclosure policy, sustainability report, or certification (e.g., Oeko-Tex, bluesign) visible in brand communications. No recalls or safety incidents specific to Andie swimwear have been publicly reported. The brand's silence on water-repellent coating chemistry is notable because many competitors (e.g.Some brands (Patagonia, Girlfriend Collective) now explicitly state they use finishes with lower PFAS concern or reduced PFAS reliance. Without transparency, the default assumption for nylon swimwear with water-repellent coating finish remains legacy PFAS use.
How it compares in its category
Most budget and mid-market swimwear brands, including Andie, do not disclose water-repellent coating chemistry and likely use conventional PFAS-based finishes. Premium and eco-focused brands (Patagonia, Lively, some Speedo lines) have publicly committed to PFAS-free alternatives. This product sits squarely in the undisclosed-chemistry segment, which represents the majority of the market but carries elevated PFAS risk relative to certified alternatives. On non-PFAS hazards, nylon-polyester blends show lower concern than PVC or rubber, with no hazard of heavy-metal or azo-dye concerns typical to the category on record.
If you buy it
Rinse thoroughly in fresh water after each use, especially saltwater or chlorine exposure, to minimize any residual chemical contact with skin and to extend the water-repellent coating finish lifespan. Wash in cold water with mild detergent; avoid bleach, fabric softener, and high heat, as these degrade both the fabric and the water-repellent coating. Air dry flat or hang; tumble dryer heat can degrade synthetics and may mobilize finish chemicals. Do not machine dry above low temperatures. Replace when the water-repellent coating finish visibly fails (water no longer beads) or fabric shows pilling, thinning, or seam separation, typically 1 to 3 years with regular use.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Andie has made none
Formulations change between production runs, so check the current label. How we grade.
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- The brand calls it PFAS-free, which we have not verified
- Elastane (spandex) degradation under heat or chlorine
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Find an alternative on AmazonMore swimwear grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.