Speedo Women's Quantum Fusion One Piece Swimsuit
Skip until Speedo discloses or switches to PFAS-free water repellency.
Speedo swimsuits typically use polyester/nylon with water-repellent coating finishes historically linked to PFAS. Speedo makes no public PFAS disclosures or commitments.
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
Polyester/nylon blend with water-repellent coating treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Speedo Women's Quantum Piece Swimsuit is made of, ingredients and materials
This swimsuit uses a polyester/nylon blend, both synthetic polymers chosen for elasticity, quick-dry properties, and chlorine resistance in pool environments. The water-repellent coating (water-repellent coating) finish is the material concern, such treatments historically relied on PFAS compounds to create water-beading surfaces, though some brands have shifted to PFAS-free alternatives. Without Speedo's specific formulation disclosure, the water-repellency chemistry remains a black box. Polyester and nylon themselves are stable under normal wear and washing.
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.
PFAS
Water-repellent coating finishes on swimwear historically contained PFOA/PFOS or related PFAS. Speedo has not disclosed the chemistry of this product's water-repellent layer, so PFAS presence cannot be ruled out. Direct skin contact during wear poses low acute risk; migration into water (pool, wash) is the primary concern.
Source, ATSDR ↗Microfiber shedding from worn coatings
Polyester/nylon blends with water-repellent coating or elastane finishes progressively shed microfibers with use and washing. Swimwear typically sheds more than casual wear due to chlorine and UV exposure. This releases tiny plastic particles into wash water and the environment.
What’s reassuring
Azo dyes in polyester
No recalls or reports of restricted azo dyes in Speedo swimwear. Polyester color stability in chlorine is generally robust; however, third-party testing of this specific colorway is not on public record.
Antimony in polyester fiber
Polyester is sometimes manufactured with antimony as a catalyst. No specific testing of Speedo swimwear for antimony content is on public record. Dermal exposure risk from antimony in fiber is considered low under normal wear.
Formaldehyde / VOCs
Some synthetic swimwear may contain formaldehyde-based resins to set elasticity or shape. Speedo does not disclose use; no recalls for this hazard in their products are recorded. Risk diminishes after initial wash cycles.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
Speedo has not published comprehensive PFAS or chemical disclosure statements as of available records, nor identified certifications (such as OEKO-TEX or Bluesign) that would independently verify absence of PFAS or restricted dyes. The brand has faced no major recalls or public scandals tied to chemical contamination in swimwear specifically. Speedo's parent company (Pentland Group) markets performance swimwear without prominent chemical-safety commitments or transparency comparable to outdoor/outdoor apparel leaders.
How it compares in its category
Most mainstream swimsuit brands (Speedo, TYR, Arena) similarly omit water-repellent coating chemistry details; few offer PFAS-free or certified-low-chemical options at mid-market price points. Premium eco-focused swimwear (Patagonia, Girlfriend Collective) increasingly publish third-party chemical testing and phased-out PFAS, but at higher cost. Speedo's silence on water-repellent coating formulation places it in the broader category of untransparent performers rather than as an outlier, though this does not minimize the gap versus transparent alternatives.
If you buy it
Rinse the swimsuit in fresh water after each chlorine/saltwater exposure to limit chemical buildup and microfiber shedding. Wash separately in cool water with minimal detergent; avoid bleach and fabric softeners which degrade synthetic coatings. Air-dry only; heat (washer dryer) will degrade elasticity and any water-repellent coating layer faster. Replace every 2-3 seasons of regular use; degraded coatings lose water repellency and may release particles.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Speedo has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Speedo Women's Quantum Fusion One Piece Swimsuit?
- Nylon/polyester blend with elastane (standard swimwear)
- The brand calls it PFAS-free, which we have not verified
- Elastane (spandex) degradation under heat or chlorine
- Cotton/cotton-blend seersucker plaid
- We found no PFAS statement from the brand
- Azo dyes and colorfast stability
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Polyester/nylon swimsuit fabric, likely uncoated or standard finish
- Azo dyes and synthetic colorants
4 hazards checked on this product, all on its full breakdown.
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.