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.
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Material
Polyester/nylon blend with water-repellent coating treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent treatments have historically contained PFAS chemicals.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
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 ↗The full breakdown
What it's made of and why it matters
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.
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 we don’t know
- 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.
Safer alternatives in Swimwear
Speedo
Women's Eco Solid Adult Super Pro Swimsuit
Polyester/nylon blend (standard swimsuit fabric)
Lower concern, typical swimwear without known water-repellent treatment, though Speedo has not disclosed PFAS avoidance.
⚠Risky category by default
Patagonia
Women's Bottom Turn Racerback Bikini Top
Nylon/polyester blend with elastane (standard swimwear)
Lower concern, basic swimwear without water-repellent coating, though Patagonia's broader PFAS practices warrant review.
⚠Risky category by default
Aerie
String Triangle Bikini Top
nylon/polyester blend (standard swimwear)
Lower PFAS concern, untreated swimwear unlikely to require water-repellent coating chemicals.
⚠Risky category by default
More 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.