Reebok · Waterproof Sports Undergarments
Reebok Women's Marled Crewneck Performance Tank Top
Lower concern. Basic athletic tank with no water-repellent finish.
Standard polyester performance tank without water-resistant or stain-guard treatments. Reebok makes no PFAS claims, but uncoated knit apparel carries minimal PFAS risk.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polyester/nylon blend knit, likely uncoated
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
This tank is a polyester/nylon blend knit, meaning synthetic fibers are mechanically interlocked rather than chemically bonded with coatings. Polyester itself is stable under normal wear and washing. Nylon blends in athletic wear are chosen for stretch and durability. No water-repellent or stain-resistant finish is mentioned, so the fabric carries minimal chemical treatment risk compared to performance-coated athletic wear.
The brand's record and disclosure
Reebok has not publicly disclosed detailed PFAS testing or elimination commitments for this product line. The brand maintains general apparel certifications but does not highlight restricted substance lists for tank tops specifically. No recalls or safety investigations involving this product model are on record. Transparency around synthetic textile chemical sourcing remains limited across most mid-market athletic brands.
How it compares in its category
Uncoated polyester/nylon athletic tanks are among the lower-chemical-load options in performance wear. This product avoids the antimicrobial, water-repellent, or stain-guard finishes that introduce extra chemical loads. It sits in the mainstream athletic market alongside brands like Nike and Adidas in terms of baseline safety, with no standout advantage or disadvantage in hazard profile.
If you buy it
Wash in cool water and air dry to preserve the knit structure; high heat is unnecessary and can degrade synthetic fibers prematurely. No special care is needed beyond standard athletic garment practice. Replace when elasticity fails or fabric pilling becomes extensive, typically after 50-100 washes depending on use intensity. No heating, bleach, or prolonged storage in direct sunlight will extend lifespan.
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.”
Azo dyes and synthetic colorants
Polyester knits are typically disperse-dyed; some disperse dyes can release aromatic amines under alkaline or high-heat conditions. Marled colorways (mixed fiber colors) suggest blended dye lots. No recalls or testing failures for Reebok tanks on record, but azo-dye migration risk exists across the entire polyester athletic category.
Antimony in polyester
Polyester synthesis can involve antimony as a catalyst; residual antimony may remain in fiber at trace levels (typically under 1 ppm in modern production). Migration into skin is considered negligible under normal conditions, but no Reebok-specific testing is publicly available for this tank.
Formaldehyde resins in finishing
Uncoated knits require minimal resin-based finishing. Performance tanks without special wrinkle-resistance or shrinkage-control treatments are unlikely to carry high formaldehyde loads. No formaldehyde-related alerts exist for Reebok basic athletic tanks.
Microfiber shedding during washing
Polyester/nylon blends shed microplastic fragments into wash water, particularly during first washes and if agitation is high. The tank will lose between 100-1000 fibers per wash cycle depending on fabric weight and water turbulence. This is an environmental concern rather than a direct health hazard to the wearer.
Fragrance or chemical additives from production or storage
No fragrance or mothproofing treatments are typical for performance athletic wear. Standard warehouse storage does not involve heavy chemical treatment for this product category. Off-gassing risk is minimal; a single wash removes residual production dust or sizing.
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 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.