REI Co-op · Camping Tents & Tarps
REI Co-op Half Dome 2 Tent
REI does not disclose its water-repellent coating chemistry; budget tent coatings carry moderate PFAS risk without confirmation.
Polyester ripstop with a water-repellent finish, but REI provides no disclosure of water-repellent coating chemistry. Traditional water-repellent coating coatings on outdoor gear often contain PFAS.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Polyester ripstop with water-repellent coating (water-repellent coating) coating
Lab data
No public lab test
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What REI Co-op Half Dome 2 Tent is made of, ingredients and materials
The Half Dome 2 uses polyester ripstop fabric, a lightweight woven synthetic chosen for strength-to-weight ratio and affordability. The water-repellent coating (water-repellent coating) coating applied to the fabric is the critical unknown, REI does not publicly specify whether this is fluorocarbon-based (PFAS-containing) or fluorocarbon-free. Polyester itself is inert and stable during normal use; the coating chemistry determines the safety profile.
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
Industry-standard polyester ripstop tents typically use PFAS-containing water-repellent coating (e.g., C6 or C8 fluorocarbons). REI does not disclose the specific chemistry. Risk is primarily environmental (PFAS release during manufacturing and disposal) and theoretical dermal exposure during handling; breathing air inside the tent poses negligible acute risk.
Source, ATSDR ↗Off-gassing of volatile compounds from coating or adhesives
Tents may release odorous volatiles (e.g., residual solvents) in their first few weeks, especially if stored warm. These typically dissipate with airing and present no documented chronic health risk, but sensitive individuals may experience temporary irritation; open the tent indoors briefly before extended use.
What’s reassuring
Polyester fiber degradation under UV
Polyester ripstop is resistant to mildew and rot but UV exposure weakens fibers over years of sun storage or use. No chemical leaching hazard; purely a durability issue that affects performance rather than safety.
Heavy metals
Polyester ripstop does not incorporate lead, cadmium, or formaldehyde-releasing resins as standard. Dyes and thread are low-concern in this application.
Source, FDA ↗Flame retardants
The Half Dome 2 is not marketed or required to meet flame-retardant standards. Polyester is naturally flammable but does not require added flame-retardant chemicals for consumer tents.
Source, EPA ↗How is this PFAS grade calculated?
The brand's record and disclosure
REI Co-op has not published a PFAS disclosure policy for their tent lines or made commitments to PFAS-free alternatives. The brand maintains strong environmental credentials and sustainability messaging but does not transparently identify or eliminate PFAS in outdoor gear. Direct inquiries to REI customer service about water-repellent coating chemistry on the Half Dome 2 are unlikely to yield specifics; this is standard industry practice across budget and mid-tier brands.
How it compares in its category
The Half Dome 2 sits in the mainstream budget-to-mid-tier backpacking tent market where water-repellent coating coatings are nearly universal and rarely disclosed. Competitors like Big Agnes and MSR face identical PFAS ambiguity. Premium brands (e.g.some manufacturers (Hyperlite, some Zpacks models) increasingly offer options with lower PFAS concern or transparently sourced materials, but at 2-3x the price. At USD 300-350, the Half Dome 2 reflects the cost-cutting industry norm.
If you buy it
Wash the tent gently with cool water after purchase to remove any loose chemical residues from manufacturing; avoid hot water or aggressive scrubbing. Store in a dry, unheated space (avoid attics or car trunks in summer). Reapply water-repellent coating every 2-3 years if water stops beading; most aftermarket water-repellent coating products are also PFAS-based, so research PFAS-free options (e.g., Nikwax) if concerned. Replace the tent if fabric tears or coating degrades severely, as patched repairs reduce structural integrity and waterproofing.
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.
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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.