Ariat · Stain-Resistant Professional Workwear
Ariat Men's Rebar M4 DuraStretch Washed Twill Dungaree
Work apparel likely has water-repellent coating; brand silent on PFAS.
Ariat's M4 Dungaree is cotton twill with water and stain resistance, typical for workwear, but Ariat won't share PFAS information. water-repellent coating treatments often contain PFAS, though modern alternatives exist.
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Material
cotton twill with durable water/stain repellent (water-repellent coating) treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Ariat Men's Rebar M4 DuraStretch Washed is made of, ingredients and materials
Ariat Rebar M4 DuraStretch uses a cotton twill base fabric treated with a durable water and stain repellent (water-repellent coating) coating. The water-repellent coating finish is the primary concern, historically, most work-apparel water-repellent coating treatments relied on fluorocarbon compounds (PFAS-based), though some manufacturers have shifted to fluorine-free alternatives in recent years. Ariat has not publicly disclosed which chemistry this product uses, leaving the actual hazard profile unclear from available information.
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.
PFAS
Undisclosed water-repellent coating treatment on work apparel commonly uses fluorocarbon-based chemistry; Ariat has not publicly stated whether this product uses PFAS-based or fluorine-free formulations. Skin contact and laundering may release small amounts of treatment residue.
Source, ATSDR ↗Chemical leaching or skin irritation from treatment residue
Unwashed water-repellent coating-coated apparel can transfer surface finish chemicals to skin, potentially causing irritation in sensitive individuals. Pre-washing and infrequent re-treatment (avoiding DIY water-repellent coating sprays) reduces this risk substantially.
What’s reassuring
Formaldehyde / VOCs
No formaldehyde-based shrink-resist or wrinkle-resistant finishes are documented on this product. Cotton twill work apparel typically avoids these treatments. No recall or testing evidence suggests formaldehyde presence.
Source, ATSDR ↗Azo dyes in indigo or color finishes
Washed twill dungarees use indigo or synthetic dyes; modern cotton apparel generally complies with restricted-azo standards in major markets. No evidence of concern-level azo dyes in Ariat's standard product line, though full dye chemistry is not published.
Heavy metals
Cotton twill does not inherently accumulate antimony (present in polyester). No recalls or test findings indicate heavy metal contamination in Ariat work apparel. Risk from this pathway is minimal.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Ariat, owned by the B.F. Goodrich Company, does not maintain published transparency regarding PFAS in apparel or treatment chemistry. The brand has no known third-party certifications (such as Bluesign, GOTS, or similar) that would indicate restricted chemical inputs. No public recalls or hazard statements have been issued for this product line. The absence of disclosure is the key issue, mainstream work-apparel brands increasingly provide water-repellent coating ingredient transparency; Ariat's silence leaves users without baseline safety information.
How it compares in its category
Work dungarees in this price range typically carry water-repellent coating coatings as standard; Ariat's positioning is mid-market. Competitors like Carhartt and Dickies have begun offering PFAS-free or disclosed-chemistry water-repellent coating options, though standard lines remain treated. Pure untreated cotton alternatives exist but sacrifice the repellency feature. Ariat's lack of transparency puts it behind leaders in the category on chemical accountability, though it is not uniquely hazardous among work apparel.
If you buy it
Wash separately from other clothing at least 3-5 times before wearing to reduce surface treatment residue transfer. Use warm water (not hot) and avoid fabric softeners, which can degrade the water-repellent coating and potentially mobilize embedded chemicals. Replace when the water-repellency visibly fails (beading stops), typically after 1-2 years of regular use. If you have skin sensitivity or are pregnant/nursing, consider requesting product safety documentation from Ariat or choosing a brand with disclosed water-repellent coating chemistry.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ariat has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Stain-Resistant Professional Workwear
Banana Republic
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- linen-viscose blend, no water-resistant finish
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
3 hazards checked on this product. See all of them.
Brooks Brothers
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- 100% cotton, pleated, no stated treatment
- We found no PFAS statement from the brand
- Residual azo dyes and synthetic dye intermediates
2 hazards checked on this product. See all of them.
Dickies
Men's Relaxed Fit Straight Leg Cargo Work Pants
- 100% cotton twill, no water-resistant treatment
- We found no PFAS statement from the brand
- Azo dyes and residual finishing agents
2 hazards checked on this product. See all of them.
More stain-resistant professional workwear 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.