Gap · Waterproof Sports & Performance Undergarments
Women's Breathe Bikini by Gap
Lower concern. No water-resistant treatment claimed; basic blend apparel.
Gap's Breathe Bikini is a nylon-elastane swimsuit with no stated water-repellent or stain-resistant finish. Gap discloses nothing about PFAS, but the absence of water-repellent coating treatment reduces typical PFAS risk.
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Material
nylon/elastane blend, no evident water-resistant treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Breathe Bikini is a nylon/elastane (spandex) blend, a common swimwear construction chosen for stretch recovery and quick-dry properties. Nylon is a petroleum-derived synthetic polymer that does not inherently leach harmful chemicals into skin when worn; elastane adds elasticity but is inert once cured. The absence of a water-resistant or durable-water-repellent (water-repellent coating) treatment (which would require fluorochemicals) removes a significant source of potential PFAS exposure in this product category. Basic nylon/elastane apparel carries substantially lower chemical risk than treated performance fabrics.
The brand's record and disclosure
Gap Inc. does not publicly maintain detailed chemical disclosure statements or sustainability certifications (such as OEKO-TEX or GOTS) for most basic apparel lines, including this bikini. The brand has faced scrutiny in the past for labor practices but has not faced documented recalls or public health warnings tied to chemical contamination in this product segment. Gap's silence on PFAS stance reflects the broader industry norm of non-disclosure rather than evidence of hidden hazards. Transparency on source facilities and dye suppliers remains limited compared to premium or certified brands.
How it compares in its category
Nylon/elastane swimwear is the industry standard for affordable bikinis and represents a middle ground between low-cost polyester blends and premium performance fabrics (which often carry water-repellent coating treatments). This product avoids the chemical load of treated or branded technical swimwear without sacrificing durability or fit. Compared to cotton-blend swimwear, nylon offers better chlorine and saltwater resistance. The Breathe line's lack of antimicrobial or moisture-wicking treatments keeps the chemical profile simpler than competitor 'advanced' offerings.
If you buy it
Rinse the bikini in fresh water after each swim to remove chlorine and salt, which can degrade elastane fibers and cause discoloration over time. Wash in cool water (not hot) on a gentle cycle; heat accelerates elastane degradation and can cause pilling. Avoid prolonged direct sunlight when drying, as UV exposure breaks down both nylon and spandex. Replace after 1-2 seasons of regular use or when elastic loses recovery; worn-out elastane does not pose a safety hazard but indicates the garment is reaching end of life.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Formaldehyde resins (dye fixatives and finish treatments)
Nylon fabrics may carry formaldehyde-releasing resin finishes used in dyeing and sizing. Gap does not disclose finish chemistry for this product. Residual formaldehyde is typically low in finished apparel, but individuals with chemical sensitivities may experience skin irritation on first wear; rinsing before use reduces exposure.
Azo dyes and colorant toxicity
The color origin and dye sources are not disclosed by Gap. Some azo dyes can release carcinogenic aromatic amines under reduction conditions, though reputable manufacturers in developed markets typically avoid banned azo dyes. Color fastness and dye migration during washing are the practical concern here rather than acute toxicity.
Microfiber shedding from synthetic fibers
Nylon garments shed microfibers during washing and wear, contributing to microplastic pollution in waterways. This is an environmental hazard rather than a direct health risk to the wearer, but it is a documented concern with all synthetic swimwear. Washing in a microfiber-capture bag or mesh reduces shedding.
Elastane (spandex) degradation and skin contact
Elastane is stable and inert under normal wearing and care conditions; no documented cases of skin irritation or leaching from virgin spandex in swimwear. Degradation (pilling, loss of stretch) is a durability issue, not a chemical safety issue.
Heavy metals in synthetic dyes
Nylon swimwear produced by Gap has no public record of heavy metal contamination in dyes or finishes. Gap is a large, US-listed manufacturer subject to standard import compliance, which reduces (but does not eliminate) the risk of non-compliant colorants. Gap does not independently certify heavy metal limits for this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof sports & performance undergarments 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.