REI Co-op · Camping Tents & Tarps
REI Co-op Westward 4 Tent
Avoid until REI discloses its water-repellent coating chemistry or commits to PFAS-free treatment.
Polyester fabric with water-repellent treatment typical of tents in this price range. REI provides no disclosure of water-repellent coating chemistry or PFAS status.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Polyester fabric with water-repellent coating (water-repellent coating) coating
Lab data
No public lab test
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What REI Co-op Westward 4 Tent is made of, ingredients and materials
The Westward 4 uses polyester fabric as its primary material, a synthetic polymer chosen for durability, weight, and water resistance. The tent includes a water-repellent coating (water-repellent coating) coating applied to the fabric to shed water without a traditional waterproof membrane underneath. water-repellent coating coatings are historically a major source of PFAS (PFAS "forever chemicals") in outdoor gear, though newer non-PFAS alternatives now exist. REI has not publicly disclosed whether this tent uses fluorocarbon-based water-repellent coating or a PFAS-free alternative.
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
REI has not disclosed whether water-repellent coating uses fluorocarbon compounds (PFAS) or PFAS-free alternatives. Historical industry practice and the absence of PFAS-free labeling suggest fluorocarbon risk is real but not confirmed.
Source, ATSDR ↗Volatile organic compound (VOC) off-gassing from coatings
Polyester fabrics with industrial water-repellent coating coatings can emit VOCs, particularly when new or heated. Airing the tent outdoors before first use and ventilating during storage reduces exposure; no specific off-gassing study for this model is on record.
Microplastic shedding from synthetic fabric
Polyester tents shed microfibers through wear and abrasion, especially during setup, takedown, and cleaning. This is not a direct health hazard to the user but an environmental concern; washing the tent indoors increases household wastewater microplastic burden.
What’s reassuring
Flame retardants
No flame retardant chemicals are documented in the Westward 4 specs. Polyester itself is moderately flame-resistant; REI does not list halogenated or brominated additives for this model.
Source, EPA ↗Heavy metals
REI products undergo standard supplier audits, and no recalls or testing reports indicate heavy metal contamination in the Westward 4 fabric dyes. This risk class is not elevated for this brand or product line based on available information.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
REI Co-op has made limited public commitments to phase out PFAS in its product lines, and does not currently list PFAS-free certifications for most of its tent inventory. The company does not disclose water-repellent coating chemistry on product pages or in material documentation for the Westward line. REI has responded to some PFAS inquiries from customers but has not adopted industry-leading transparency practices seen at competitors like Patagonia or The North Face in their premium lines. No recalls or safety violations specific to this tent model are on record.
How it compares in its category
Most mainstream four-season tents in REI's price range use polyester with water-repellent coating, so the Westward 4 is typical in material choice. Competing brands (Big Agnes, MSR, Nemo) also rarely disclose water-repellent coating chemistry at this price point, though some offer PFAS-free options at higher cost. REI's own-brand approach mirrors industry standard, functional but opaque. Backpackers prioritizing PFAS avoidance typically must move up to premium labels with explicit PFAS-free claims or use older, PFC-free designs.
If you buy it
Store the tent dry in a cool, shaded location to minimize off-gassing of any coating chemicals and extend water-repellent coating lifespan. Avoid direct heat sources and UV exposure, which can degrade both polyester and water-repellent coating over time. If you camp frequently or in wet conditions, the water-repellent coating will gradually lose effectiveness (typically 1-3 years); reapplication with a fluorocarbon or PFAS-free refresh product is an option, though it introduces additional chemical exposure. Before purchase, contact REI customer service to request written confirmation of the water-repellent coating type, framing it as a material safety and environmental concern.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- REI Co-op has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
More camping tents & tarps 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.