Unionbay Juniors Khaki Uniform Pants
Lower PFAS concern. Basic khaki pants with no special water or stain treatment disclosed.
Unionbay khakis are standard cotton or cotton-blend twill without advertised water-repellent coating or stain-resistant finishes. No PFAS disclosure needed for untreated apparel.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Cotton or cotton-blend twill, untreated
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Unionbay Juniors Khaki Uniform Pants is made of, ingredients and materials
Unionbay Juniors khaki pants are constructed from cotton or cotton-blend twill, a durable, densely woven fabric commonly used in school uniforms and workwear. The untreated material means no water-repellent, stain-resistant, or flame-retardant finishes have been applied, which eliminates the chemical processing steps that typically introduce hazardous residues. Twill's tight weave is stable during standard washing and wear, reducing microplastic shedding compared to looser knits.
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.
Azo dyes and colorfast residues
Khaki dyeing uses synthetic azo dyes that are regulated in the US but may vary by mill. No product-specific dye testing is disclosed; loose dyes can irritate sensitive skin in first wears. Pre-washing mitigates this.
Lead
Cotton textiles imported to the US must meet lead and cadmium limits under CPSIA; testing data is not published per-product. Khaki dyes are lower-risk than bright colors but residual metal content cannot be ruled out without lab analysis.
Source, ATSDR ↗Antimony in polyester (if present)
If the blend includes polyester, antimony trioxide may be used as a catalyst. Kohl's does not disclose blend ratio or antimony content; untreated blends typically leach minimal amounts, but contact with sweat or heat may increase migration slightly.
Microplastic shedding during wash and wear
Twill is denser than knits and sheds less, but synthetic fibers in any blend release microparticles over time. Washing in cold water and avoiding fabric softener reduces shedding; this is a category-wide concern, not specific to Unionbay.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Unionbay's untreated khaki twill does not list anti-wrinkle or wrinkle-resistant resin finishes. Formaldehyde off-gassing is not a documented concern for this product line.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
Kohl's, the retailer, does not publicly disclose formaldehyde-resin finishes, heavy-metal dyes, or antimony content for Unionbay basics in available product documentation. No major recalls or safety violations specific to Unionbay khaki pants are on record in consumer safety databases. Kohl's has not pursued formal apparel safety certifications (such as OEKO-TEX or GOTS), but this product tier typically undergoes standard US import compliance testing for heavy metals in dyes.
How it compares in its category
School uniform khakis from major retailers (Gap, Old Navy, Amazon Essentials) occupy the same low-hazard tier when untreated. Unionbay sits at the budget end, meaning less documentation but also fewer decorative finishes, coatings, or specialty treatments that introduce risk. Higher-end or performance-oriented pants (outdoor brands, athletic wear) often carry flame retardants or hydrophobic treatments that this product avoids.
If you buy it
Wash new pants in cold water before wearing to reduce loose dye residue and potential skin irritation, especially for children with sensitive skin. Machine wash warm on standard cycles; no special heat restrictions apply to untreated cotton blend. Replace when seams fail or fabric thins, typically after 1-2 school years of regular wear. No bleach needed; mild detergent and air dry extend life and reduce wear stress.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kohl's has made none
Formulations change between production runs, so check the current label. How we grade.
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.