Black Diamond · Waterproof Outdoor Gear
Black Diamond Cirque 25 Backpack
Typical backpack with water-repellent coating finish, PFAS status undisclosed by brand.
Black Diamond does not publicly disclose PFAS content or water-repellent coating chemistry. Backpack likely has water-repellent coating; many outdoor brands use fluorinated water-repellent coating, though some offer PFAS-free alternatives.
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Material
Nylon/polyester with water-repellent coating water-repellent treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
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.
The full breakdown
What it's made of and why it matters
The Cirque 25 uses nylon and polyester as primary materials, both synthetic polymers that do not leach significant chemicals during normal use as a backpack (no food contact, no heating). The water-repellent coating (water-repellent coating) coating on the exterior is where chemical risk concentrates: these treatments are historically applied to textiles using fluorinated compounds (PFAS family) or non-fluorinated alternatives, and Black Diamond has not publicly disclosed which approach they use. Polyester itself can shed microfibers when abraded, particularly during washing, though this is a use-phase concern rather than an inherent hazard at manufacture.
The brand's record and disclosure
Black Diamond (owned by Clarus Corporation) does not maintain a public commitment to PFAS-free water-repellent coating finishes or transparency about water-repellent chemistry in their gear, making their stance effectively silent on this common industry issue. The brand has no recorded product recalls for chemical hazards in backpacks and maintains general outdoor-industry standards for construction. No independent testing has been published identifying heavy metals, formaldehyde, or azo dyes in Black Diamond backpacks, and polyester-nylon blends are not a known vector for these hazards in the apparel category.
How it compares in its category
Mid-range outdoor backpacks typically use identical nylon/polyester construction with water-repellent coating finishes; the Cirque 25 is representative rather than exceptional. Some premium brands (e.g., Patagonia) now disclose non-fluorinated water-repellent coating alternatives or outline treatment chemistry, while budget brands rarely do. Black Diamond's silence matches most mainstream outdoor manufacturers, meaning buyers cannot easily compare this model's water-repellent coating safety to competitors without direct brand contact.
If you buy it
Wash by hand or gentle machine cycle with cool water and mild detergent to minimize microfiber shedding and preserve water-repellent coating longevity. Avoid fabric softeners and bleach, which degrade water repellency and may interact unpredictably with the finish chemistry. water-repellent coating coatings typically last 1-3 years before re-application becomes necessary; when water no longer beads on the fabric, consider reapplying a commercial water-repellent coating treatment if desired. Store in a dry location to prevent mold growth in the pack material, which is not a chemical hazard but a maintenance issue.
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.”
water-repellent coating (water-repellent) coating chemistry - undisclosed
Black Diamond has not publicly specified whether the water-repellent coating finish uses PFAS-based or non-fluorinated chemistry. Typical backpack water-repellent coating treatments may contain fluorinated compounds; risk level depends on brand choice and durability of application. See PFAS assessment (graded separately) for associated concerns.
Microfiber shedding from polyester
Polyester fibers may shed during washing and wear, particularly with abrasion or machine drying. This is a use-phase concern rather than an acute toxicity hazard, but contributes to microplastic environmental load. Intensity is minimized by hand washing and avoiding heat.
Formaldehyde resins in textile finishing
No formaldehyde-based finishing agents have been reported in Black Diamond backpacks. Nylon and polyester base materials do not require formaldehyde resins for functionality, and the brand maintains no known record of this hazard in the product line.
Heavy metals or azo dyes in dyed fabrics
No independent testing or brand disclosure indicates the presence of lead, cadmium, or restricted azo dyes in the black nylon exterior. Standard outdoor industry practice and lack of reported incidents suggest this is not a recognized concern for this product.
Synthetic rubber or adhesive off-gassing
Backpack construction uses minimal adhesives (mostly stitching), and any glues or seam sealants are not known to emit significant volatile organic compounds. No recalls or complaints specific to off-gassing have been recorded for Black Diamond packs.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% 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.
Safer alternatives in Waterproof Outdoor Gear
Patagonia
Refugio Day Pack 26L
recycled nylon with non-fluorinated water-repellent coating treatment
Lower PFAS concern. Patagonia claims non-fluorinated water-repellent coating on this pack.
⚠Waterproof or stain-proof treatment
More waterproof outdoor gear 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.