Arc'teryx Men's Beta Pants
Contact Arc'teryx directly or skip; no PFAS disclosure on water-repellent coating-treated shell.
The Beta Pants use a nylon shell with water-repellent coating, a category historically associated with PFAS-based treatments. Arc'teryx makes no public statement about PFAS presence or safer alternatives.
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Material
Nylon shell with water-repellent coating water-repellent coating finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent treatments have historically contained PFAS chemicals.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
PFAS
Arc'teryx has not disclosed whether the Beta Pants water-repellent coating uses fluorinated compounds (PFAS) or fluorine-free chemistry. This is a standard finish type in rain apparel where PFAS remains common, though newer alternatives exist. Contact Arc'teryx or check product tags for 'fluorine-free' or 'PFC-free' labels if this is a concern.
Source: ATSDR ↗water-repellent coating finish degradation and re-application exposure
If you apply commercial water-repellent coating treatments to refresh the coating, exposure depends on the product used. Choose fluorine-free reapplication treatments to avoid adding PFAS. Washing frequency and method matter; excessive heat can strip finish faster and may require more frequent reapplication.
What’s reassuring
Formaldehyde / VOCs
Nylon apparel can contain small amounts of formaldehyde-based resins in dyes or finishing, but Arc'teryx products undergo standard industrial washing that removes most residue. No reported formaldehyde contamination in Arc'teryx rain gear.
Source: ATSDR ↗Azo dyes
Arc'teryx is a premium brand using quality dye chemistry, and no documented azo dye violations exist for the brand. Nylon is typically dyed with non-azo or restricted-azo formulations in mainstream outdoor brands.
Antimony in polyester components
The Beta Pants are described as nylon shell, not polyester. If any internal components or labels use polyester, antimony risk exists but is not documented for Arc'teryx products and would be minimal in a rain shell.
The full breakdown
What it's made of and why it matters
The Beta Pants use a nylon shell, a petroleum-derived synthetic polymer that is durable and inherently water-resistant to some degree. The critical component is the water-repellent coating (water-repellent coating) finish applied to the fabric surface. Arc'teryx has not publicly disclosed whether this water-repellent coating uses legacy PFAS (PFOA, PFOS) or newer fluorine-free alternatives. water-repellent coating coatings are the primary PFAS exposure route in rain apparel; without transparency, you cannot verify safety of this finish.
The brand's record and disclosure
Arc'teryx is a subsidiary of Salomon Group (owned by Amer Sports). The brand has not published a public PFAS policy, chemical disclosure statement, or commitment to fluorine-free water-repellent coating across its product lines as of available records. No major recalls or documented chemical hazards have been issued for Arc'teryx apparel. The silence on water-repellent coating chemistry is the primary concern; competitors like Patagonia and some outdoor brands now offer fluorine-free water-repellent coating or disclose their PFAS use.
How it compares in its category
High-end rain pants in this category (The North Face, Salomon, Columbia) typically use either legacy PFAS-based water-repellent coating or newer fluorine-free alternatives, but most manufacturers do not proactively disclose which. Arc'teryx's Beta line is premium-priced and well-regarded for durability and fit. The lack of public water-repellent coating chemistry disclosure is not unusual in the category, but it is a gap compared to brands explicitly marketing PFAS-free or certified sustainable rain gear.
If you buy it
Wash separately from other clothes when new to remove excess finish residue. Use cool water and mild detergent; avoid high heat drying, which can degrade nylon and accelerate finish breakdown. water-repellent coating coatings naturally degrade after 50-100 washes; reapply commercial water-repellent coating treatments as needed if you want water shedding. The nylon itself is stable and does not leach chemicals under normal wear; the finish is the only chemical concern.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Arc'teryx has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Rain Pants
Patagonia
Women's Torrentshell 3L Pants
Nylon with water-repellent coating water-repellent coating finish
Medium risk. Lower-concern choice within waterproof apparel backed by brand commitment. Verify specific batch before purchase.
⚠Waterproof or stain-proof treatment
More rain pants 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.