Big Agnes · Camping Tents & Tarps
Big Agnes Copper Spur UL2 Camping Tent Tent
Tent fabric likely treated with water-repellent coating; PFAS status undisclosed by brand.
Big Agnes does not publicly disclose PFAS content or water-repellent coating chemistry in the Copper Spur UL2. Outdoor tent fabrics commonly use PFAS-based water-repellent coating coatings, but brand transparency is absent.
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Material
Nylon fabric with water-repellent coating waterproof treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
PFAS
Nylon water-repellent coating treatments historically used C8 or C6 fluorinated compounds; Big Agnes has not disclosed the specific chemistry used. Independent testing of Big Agnes tents is not on public record.
Source: ATSDR ↗Nylon degradation and microparticle shedding
Over years of use, nylon ripstop can degrade and shed microfibers, particularly at stress points and seams. This is a cumulative wear issue rather than a manufacturing defect, managed through proper storage and avoiding abrasion.
What’s reassuring
Formaldehyde / VOCs
No established reports of formaldehyde-based finish resins in Big Agnes nylon tent fabrics. Nylon ripstop does not typically require formaldehyde-based durable-press finishes.
Source: ATSDR ↗Heavy metals
Big Agnes Copper Spur UL2 fabric is typically undyed or uses standard polyamide-compatible colorants; no recalls or contamination reports on record for this model.
Source: FDA ↗Antimony in synthetic fibers
Antimony is occasionally used as a polyester catalyst; this tent uses nylon, not polyester, so antimony contamination is not a typical concern for this material class.
The full breakdown
What it's made of and why it matters
The Copper Spur UL2 uses ripstop nylon fabric as its primary shell and floor material, chosen for weight efficiency and tear resistance in ultralight camping tents. water-repellent coating (water-repellent coating) finish is applied to the nylon to shed rain without creating a waterproof barrier that would trap moisture and condensation. The nylon itself is inert and stable, but the chemistry of the water-repellent coating is what carries potential concern, as many commercial water-repellent coating treatments historically relied on fluorinated compounds to achieve water and oil repellency.
The brand's record and disclosure
Big Agnes has not publicly disclosed the specific water-repellent coating chemistry used in the Copper Spur UL2 or provided PFAS-free certifications for this model. The brand does not appear to have made a public commitment to phasing out fluorinated water-repellent coating treatments across its product line. Without direct communication from Big Agnes, the water-repellent coating treatment cannot be confirmed as PFAS-free, and the company's silence on this question is notable in an industry where some competitors (notably Patagonia) have begun disclosing PFAS-alternative approaches.
How it compares in its category
Among ultralight backpacking tents, Big Agnes occupies a mainstream market position. Competitors like MSR and Kelty similarly do not prominently disclose water-repellent coating chemistry, whereas some premium and eco-focused brands (Patagonia, some cottage manufacturers) have begun offering PFAS-free options or transparency statements. The Copper Spur UL2 is priced and specified competitively but lacks the transparency advantage of brands making explicit commitments on fluorine-free treatments.
If you buy it
Inspect seams and fabric for damage or delamination before use and annually thereafter; nylon is durable but water-repellent coating coatings degrade over time and through washing. Avoid machine washing; hand-clean with mild soap and air-dry to extend coating life and reduce leaching of any treatment chemicals. Store dry and avoid prolonged UV exposure, which degrades nylon. If PFAS exposure is a concern, contact Big Agnes directly to confirm water-repellent coating chemistry before purchase, or consider brands that have made explicit PFAS-free commitments.
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
- Big Agnes has made none
Formulations change between production runs, so check the current label. How we grade.
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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.