Hunza G Square Neck One Piece Swimsuit
Avoid until brand reveals water-repellent coating chemistry; legacy finishes commonly contained PFAS.
This luxury nylon swimsuit features water-repellent treatment without any brand statement on PFAS content or alternatives. Premium swimwear has traditionally used perfluorinated coatings for durability.
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 blend (likely nylon/spandex) with water-repellent coating (water-repellent coating) finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Hunza G Square Neck One Piece Swimsuit is made of, ingredients and materials
Hunza G's signature one-piece uses a nylon-spandex blend, a standard high-stretch swimwear base. The critical unknown is the water-repellent coating (water-repellent coating) finish applied to the fabric. water-repellent coating coatings historically relied on PFAS chemistry (perfluorinated compounds) to repel water and chlorine; newer alternatives exist but require explicit manufacturer confirmation. Without disclosure, you cannot know if this garment carries legacy PFAS finishes.
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.
Formaldehyde / VOCs
Formaldehyde-based resins are sometimes used in nylon finishing for wrinkle resistance or shape retention. Not confirmed for this product; lack of Oeko-Tex certification means no independent testing for residual formaldehyde.
Source, ATSDR ↗Microplastic shedding
Nylon-spandex blends shed microfibers in laundering. This is inherent to synthetic fiber swimwear and not brand-specific; shedding increases with wear and washing frequency. No evidence Hunza G's construction is worse than standard, but care and lifespan directly affect exposure.
Spandex degradation products
Spandex (elastane) degrades with heat, chlorine, and UV exposure. Degradation by-products are not well-characterized in consumer use; risk is minimized by avoiding heat and excess chlorine exposure. No specific data on Hunza G's spandex quality or durability vs. competitors.
PFAS
Even newer non-PFAS water-repellent coating finishes (silicones, waxes, hybrid coatings) may release trace compounds into water or skin contact. Hunza G has not disclosed which finish type is used, making risk assessment impossible. This is the primary non-PFAS chemical concern for this product.
Source, ATSDR ↗What’s reassuring
Azo dyes
Hunza G does not publicly disclose dye sourcing. Nylon readily accepts synthetic dyes; restricted azo dyes are banned in EU/many markets, but brand certification status is unclear. No recalls or adverse events reported.
The full breakdown
The brand's record and disclosure
Hunza G has not publicly disclosed its water-repellent coating chemistry or committed to PFAS-free finishes. The brand does not appear to hold third-party certifications (Oeko-Tex, Bluesign) that would independently verify synthetic coating safety. No recalls or formal complaints regarding chemical content have been reported in public databases, but silence on water-repellent coating sourcing is a material gap for a premium swimwear brand in an era of PFAS awareness.
How it compares in its category
Premium swimwear brands vary widely, some (e.g., Girlfriend Collective, Patagonia) explicitly certify PFAS-free construction; others remain opaque. Hunza G's price point and luxury positioning would support transparent sourcing but does not guarantee it. The Square Neck One Piece is marketed for durability and color retention, which historically meant aggressive finishing, a red flag if finishes are not explicitly verified as non-PFAS.
If you buy it
Rinse thoroughly before first wear to reduce any residual finish chemicals on the surface. Wash in cold water with mild detergent; avoid heat (hot water, dryers, direct sun for extended periods) which can degrade nylon and spandex, potentially releasing breakdown products. Replace after 2-3 years of regular use or when elastic loses recovery. If you have concerns about water-repellent coating chemistry, contact the brand directly requesting water-repellent coating supplier and formulation data before purchase.
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
- Hunza G has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Swimwear
Patagonia
Women's Bottom Turn Racerback Bikini Top
- 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
Solid & Striped
Taylor One Piece Seersucker Plaid
- Cotton/cotton-blend seersucker plaid
- We found no PFAS statement from the brand
- Azo dyes and colorfast stability
2 hazards checked on this product. See all of them.
Adidas
Women's Mexicana Florals Tie-Back Swimsuit
- Polyester/nylon swimsuit fabric, likely uncoated or standard finish
- Azo dyes and synthetic colorants
4 hazards checked on this product. See all of them.
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.