Calvin Klein · Waterproof Sports Undergarments
Calvin Klein Men's Dress Shirt Slim Fit Non Iron
Non-iron finish likely contains PFAS, brand silent on sourcing.
Calvin Klein doesn't disclose PFAS use in this shirt. Non-iron and durable press finishes typically rely on fluorochemical treatments, and no independent verification is available.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
cotton blend with durable press/non-iron finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Calvin Klein Men's Dress Fit Non Iron is made of, ingredients and materials
This shirt is a cotton blend (typically 55-65% cotton, 35-45% polyester) treated with a durable press or non-iron chemical finish. That finish is applied to the fabric after weaving to reduce wrinkles and maintain shape through washing and wearing. The chemistry enabling wrinkle resistance almost universally involves fluorinated compounds (PFAS) that bond to fibers; Calvin Klein does not disclose whether they use legacy long-chain PFAS or newer short-chain alternatives, both of which resist degradation in the environment and can accumulate in the body.
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
Traditional non-iron finishes may contain formaldehyde-releasing compounds to cross-link the PFAS coating to cotton fibers. Most modern formulations use lower-release versions, but off-gassing during the first few washes is possible, especially if the shirt is stored sealed or in warm conditions. Airing out new shirts before wear mitigates this risk.
Source, ATSDR ↗Coating degradation and microfiber shedding
As the non-iron finish degrades with repeated washing and wear, the coating may flake or shed fine polymer particles into wash water and lint traps. This is an unavoidable end-of-life hazard for all non-iron garments; the extent and composition depend on the specific PFAS chemistry used, which Calvin Klein does not disclose.
Chlorine bleach sensitivity in treated fabric
The PFAS-based finish may react unpredictably with chlorine bleach, causing discoloration or accelerated coating breakdown. White non-iron shirts should be cleaned with oxygen-based or color-safe bleach to preserve the finish and avoid unintended chemical reactions.
What’s reassuring
Azo dyes in polyester blend or color fixation
No specific recalls or warnings for Calvin Klein dress shirts relate to azo dyes or heavy-metal dyes. Mass-market dress shirts typically use approved colorants, but the polyester component is sometimes dyed with lower-cost azo compounds depending on the mill. Lighter colors (white, pale blue) carry lower risk than deep reds or blacks.
Antimony in polyester component
Antimony is a permitted catalyst in polyester production and may be present in the ~40% polyester in this blend; typical exposure levels in textiles are very low and not documented as a consumer hazard from wearing dress shirts. No specific warnings for Calvin Klein products in this category exist.
How is this PFAS grade calculated?
The brand's record and disclosure
Calvin Klein (owned by PVH Corp) has not published a public PFAS elimination timeline or source-material transparency statement for dress shirts, unlike some European competitors. The brand has faced criticism for weak water-use and chemical-disclosure practices in apparel manufacturing, though no major recalls or safety violations specific to this product line are on record. PVH has committed to reducing chemicals in manufacturing but does not break out PFAS commitments by product category, leaving non-iron shirt sourcing in a gray zone.
How it compares in its category
Most mass-market non-iron dress shirts (Dockers, Tommy Hilfiger, Ralph Lauren) use identical or chemically similar durable press finishes, so this product is not an outlier in PFAS exposure risk within its price and convenience tier. Alternatives with lower concern for PFAS exist but are rare at this price point and typically accept visible wrinkles or require higher-maintenance fabric blends (linen, higher cotton content). If PFAS avoidance is a priority, 100% cotton dress shirts or brands explicitly certifying PFAS-free finishes (e.g., some Patagonia alternatives) are the meaningful distinction.
If you buy it
Wash in cool water and dry on low or air-dry to minimize PFAS shedding into wastewater and extend the non-iron finish lifespan (heat degrades the coating). Avoid high-temperature pressing; use a steam press or low-iron setting only if needed. Replace the shirt when the non-iron effect degrades noticeably (typically 50-100 wears), as a failing finish may shed polymer fragments. Do not dry clean unless necessary, as solvents can further break down the PFAS-containing treatment.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Calvin Klein has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Calvin Klein Men's Dress Shirt Slim Fit Non Iron?
- Cotton-blend knit jersey, uncoated
- We found no PFAS statement from the brand
- Azo dyes and synthetic colorants
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- cotton jersey, no applied finish
- We found no PFAS statement from the brand
- Azo dyes and colorant residues
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- 100% cotton jersey knit, untreated
- We found no PFAS statement from the brand
- Azo dyes
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore 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.