Boys khaki pants · School Uniforms
Old Navy Kids Uniform Straight Leg Pants 2-Pack
Lower concern. Basic untreated cotton blend with no water-repellent coating.
Old Navy khaki pants are plain cotton-polyester blend without stain resist or water-resistant treatment, reducing PFAS risk. Brand does not disclose PFAS information.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Cotton-polyester blend khaki
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
These are a cotton-polyester blend khaki, likely 65% polyester and 35% cotton based on typical Old Navy uniform construction. The polyester component is spun fiber with no fluorocarbon water-repellent finish applied, meaning no PFAS durable-water-repellent coating. The cotton portion carries standard agricultural residues (pesticide/fertilizer traces) but the blend ratio keeps that diluted. Dye and finishing processes are standard industry practice for this price point, with no special performance treatments that would introduce additional chemical hazards.
The brand's record and disclosure
Old Navy (Gap Inc.) has not published detailed chemical disclosure for individual SKUs like school uniforms, and does not voluntarily communicate PFAS use or phase-out. Gap Inc. has faced scrutiny over supply-chain transparency but maintains general compliance with US apparel regulations. No major recalls or chemical contamination incidents are on record for Old Navy children's basics. The brand's silence on chemical inputs is standard for fast-fashion retailers, not a specific warning sign.
How it compares in its category
School uniform pants occupy the lowest-chemical tier of children's apparel because they are untreated basics with no water resistance, stain resistance, or performance finishes. This product is typical of the category. Premium alternatives (organic-certified cotton blends, third-party chemical auditing) exist but cost 2-3x more. Mass-market competitors (Lands End, Target Cat & Jack) have identical or less transparent disclosure practices.
If you buy it
Wash new items before first wear to remove residual dyes and finishing agents. Use warm water (not hot) and standard detergent; no special care needed. These are designed for frequent washing and normal school wear. Check the fit every 4-6 months since children outgrow uniforms faster than fabric degrades. Polyester-cotton blends hold up well through 50+ wash cycles; replace when seams fray or fabric pilling becomes visible.
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
Khaki dyes in mass-produced apparel may include azo compounds that, while regulated in the US, can release aromatic amines if fabric degrades or is washed repeatedly. Old Navy does not disclose dye chemistry. Risk is low for normal wear but increased with high heat or bleach.
Formaldehyde-based finishing resins
Cotton-polyester blends sometimes receive formaldehyde-free or low-formaldehyde wrinkle-resist finishes; Old Navy does not specify. Residual formaldehyde is unlikely at dangerous levels post-manufacture but first wash will release any volatiles present.
Antimony in polyester
Polyester fibers may contain antimony trioxide as a catalyst remnant (typically 0.2-0.5 ppm in virgin polyester). At these trace levels, dermally available antimony is not a known hazard from wearing polyester clothing; no reports exist for Old Navy products specifically.
Chlorine bleach sensitivity
Polyester-cotton blends can yellow or weaken if exposed to high-concentration chlorine bleach. Care instructions should specify non-chlorine bleach if disinfection is needed for school uniforms.
Microfiber shedding from washing
Polyester sheds microfibers when washed; this is not a direct health hazard to the wearer but contributes to microplastic pollution. Using a lint trap or dedicated wash cycle can reduce shedding by up to 50%.
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 school uniforms 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.