Kelty · Waterproof Outdoor Gear Storage Bags
Kelty Backpack Rain Cover
Pass until Kelty discloses water-repellent coating chemistry or verifies PFAS-free status.
Kelty rain covers are polyester with a water-repellent coating water-repellent finish that often contains PFAS. Kelty provides no chemical information.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polyester with water-repellent coating water-repellent coating
Lab data
No public lab test
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What Kelty Backpack Rain Cover is made of, ingredients and materials
Kelty's rain cover is polyester with a water-repellent coating (water-repellent coating) coating. Polyester itself is stable and low-risk, but water-repellent coating finishes on outdoor gear have historically relied on fluorinated compounds (PFAS) to achieve water-shedding performance. The coating chemistry determines whether you're dealing with legacy PFAS, newer fluorine-free alternatives, or something in between. Kelty has not publicly disclosed what their water-repellent coating formulation contains.
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
Water-repellent coating finishes on polyester rain covers commonly contain PFAS (perfluorooctane, similar compounds) to achieve water repellency. Kelty has not disclosed whether this product uses fluorinated or fluorine-free chemistry. Ingestion or dermal absorption from the cover itself is low-probability during normal use, but manufacturing runoff and eventual landfill leaching are environmental concerns.
Source, ATSDR ↗Polyester microfiber shedding
Washing or abrasion of polyester textiles releases microplastics into wastewater. A rain cover sees moderate abrasion from backpack straps and weathering. Environmental impact is documented but not a direct health hazard to the user; relevant if environmental microplastic concern drives purchasing.
water-repellent coating durability and reapplication chemicals
As water-repellent coating wears, water shedding declines and users often reapply commercial water-repellent coating sprays (many still fluorinated). Even if Kelty's original coating is benign, end-of-life reapplication introduces variable chemical exposure. Instructions for care and refresh typically do not specify products with no hazard of this kind on record.
What’s reassuring
Formaldehyde / VOCs
Polyester textiles may be treated with formaldehyde-based resins for wrinkle resistance or shape retention. No public recalls or safety notices for Kelty backpack rain covers cite formaldehyde; this hazard is theoretical for the product class. Off-gassing risk is minimal if resin curing is complete at factory.
Source, ATSDR ↗Heavy metals
Kelty rain covers are typically solid colors (gray, blue, green) applied via standard disperse dyes on polyester. No specific contamination reports exist for this product or brand. Risk remains low if dyes meet standard textile safety regulations, though brand testing protocols are not publicly disclosed.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Kelty is a long-established outdoor brand owned by VF Corporation. The company has not issued public statements about PFAS phase-out or water-repellent coating chemistry for this product line. VF Corporation (parent of Vans, Timberland, and The North Face) has acknowledged PFAS in some textile applications but has not announced a company-wide elimination timeline. Without certification or voluntary disclosure, Kelty's stance on fluorinated water repellents remains opaque.
How it compares in its category
Most rain covers in this price and performance tier still use fluorinated water-repellent coating because fluorine-free alternatives cost more and may require reapplication sooner. Competitors like REI Co-op and some premium brands (Patagonia, Arc'teryx) have moved toward disclosed PFAS-free or low-PFAS options. Kelty's silence puts it in the middle of an industry transition where transparency has become a competitive differentiator. You are not purchasing an outlier product, but you are purchasing from a brand that lags on disclosure.
If you buy it
Use the cover outdoors only; avoid storing it bundled with food or clothing for extended periods. Do not machine wash if avoidable; rinse gently with plain water and air dry away from direct heat. Polyester does not off-gas formaldehyde significantly, but avoid prolonged skin contact if you have sensitive skin or are pregnant (as a precaution regarding unknown water-repellent coating residues). Replace it when the water-shedding noticeably diminishes, typically every 2-4 years of regular outdoor use.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kelty has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Kelty Backpack Rain Cover?
- Polypropylene storage bin, no water-resistant coating mentioned
- UV degradation and additive leaching
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Nylon, polyester, cotton blend; details unspecified
- Volatile organic compounds (VOCs) from polyester and nylon manufacturing
5 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Recycled polyester with water-repellent coating (water-repellent coating) finish
- The brand calls it PFAS-free, which we have not verified
- PFAS
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore waterproof outdoor gear storage bags 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.