Alo Yoga Swim Alo X Frankies Cheeky One Piece Bathing Suit. Nwots. Small
Lower concern for a basic nylon-spandex swimsuit with no disclosed water-repellent finish.
This one-piece swimsuit is made from nylon and spandex blend material not linked to PFAS. No water-repellent finish is on record. Alo Yoga has no PFAS statement on record for this product.
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/spandex blend swimwear (typical for swim apparel)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Alo Yoga Swim Alo X Frankies Cheeky One is made of, ingredients and materials
This one-piece is constructed from a nylon and spandex (elastane) blend, the industry standard for swimwear durability and stretch recovery. Nylon provides chlorine and salt resistance, while spandex gives the fitted, compressive fit. Neither material inherently poses acute chemical hazards at normal use temperatures, though both can degrade over time with repeated pool exposure.
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.
Formaldehyde / VOCs
Formaldehyde-based dye fixatives or finishing resins may be used in nylon dyeing and wrinkle-resistance treatments. New garments may off-gas trace formaldehyde; ventilation and one wash typically dissipates it. Alo does not publish finish specifications for this item.
Source, ATSDR ↗Spandex degradation and leaching
Repeated chlorine, UV, and mechanical stress gradually break down elastane polymers, potentially releasing oligomers or processing residues. This is a durability issue more than acute toxicity, but fragmented spandex fibers contribute to microplastics shed into water.
Skin irritation from dyes or finishes
Individual sensitivities to synthetic dyes, residual finishing chemicals, or elastane itself may cause contact dermatitis or itching, especially in chlorinated water. Rinsing before first wear and patch testing on sensitive skin is prudent if prior reactions have occurred.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Azo dyes
No public data indicates Alo uses restricted azo dyes in this product. Nylon swimwear typically uses acid or disperse dyes, which are less regulated but not inherently hazardous at normal wear. Without supplier testing disclosure, azo presence cannot be ruled out definitively.
Heavy metals
No recalls or published test data for Alo Yoga swimwear reveal heavy metal contamination. Modern textile dyes are designed to avoid lead, cadmium, and chromium, though supplier auditing is not independently verified for this brand.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Alo Yoga is a lifestyle and activewear brand with no documented major safety recalls or substantive third-party certifications for swimwear chemical content. The brand does not publicly disclose supplier testing, restricted substance lists, or PFAS mitigation strategies. No independent testing of Alo swimwear has been published by consumer safety organizations.
How it compares in its category
Nylon-spandex blends are universal across mid-market and luxury swimwear; Alo's pricing and positioning place it in the competitive mainstream. Brands like Speedo and Patagonia have published chemical safety commitments; Alo has not. The Frankies Cheeky collaboration does not indicate any special material sourcing or testing beyond standard manufacturing.
If you buy it
Rinse in fresh water immediately after pool or salt use to minimize chlorine and salt damage, which can accelerate fiber breakdown and potential irritation. Wash in cool water with mild detergent, avoid bleach and fabric softener, and line-dry to extend elastane life (heat degrades spandex). Replace if elastic fails or fabric pilling becomes severe, typically after 80-100 wears with normal care. Store dry in a cool space away from direct sunlight.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Alo Yoga 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
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.