Hammock Gear · Camping Tents & Tarps
Hearth Underquilt
Underquilt uses unknown waterproof coating; brand silent on PFAS.
Hammock Gear does not disclose PFAS status or coating chemistry for this underquilt. Synthetic insulated quilts often use water-repellent coating finishes that may contain PFAS, but this product's specific treatment is unspecified.
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Material
Synthetic insulation with unspecified water-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Hearth Underquilt is made of, ingredients and materials
The Hearth Underquilt uses synthetic insulation (likely polyester or nylon fibers) with an unspecified water-resistant coating applied to the outer shell. The coating's chemistry is not disclosed by the brand, which is the critical unknown, water-resistant treatments on outdoor textiles often rely on PFAS (fluorocarbon compounds) or, less commonly, wax-based or silicone alternatives. Without confirmation of the coating type, users cannot assess whether they are exposed to PFAS during use, care, or eventual disposal.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
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.
PFAS
Water-resistant finish chemistry is unspecified. Historical norm in outdoor textiles is PFAS-based treatment, but brand has not confirmed or denied. No independent testing result on record for this product.
Source, ATSDR ↗Microplastic shedding from synthetic insulation
Synthetic insulation fibers can shed microplastics during washing or use, particularly if the outer shell coating degrades. Concern is environmental rather than direct health risk to user, but relevant for lifecycle assessment.
What’s reassuring
Formaldehyde / VOCs
Synthetic insulation fibers (polyester/nylon) may receive durable press or antimicrobial finishes in manufacturing, but no formaldehyde-based treatment is on record for Hammock Gear products or typical underquilt specifications. Unlikely hazard in this context.
Source, ATSDR ↗Antimony in polyester insulation
Antimony trioxide is a catalyst used in polyester production, but residual levels in finished consumer textiles are tightly regulated and rarely detected above trace amounts. No specific concern reported for this brand or product category.
Azo dyes in synthetic shell or insulation
Underquilts are typically neutral colors (black, gray, olive) achievable with non-azo dyes or disperse dyes; no hazard on record for this product or material class.
How is this PFAS grade calculated?
The brand's record and disclosure
Hammock Gear has not publicly disclosed the chemistry of the water-resistant coating on this product or stated a PFAS policy. This silence is notable in a market segment (outdoor/camping gear) where some competitors have begun transparency statements or committed to PFAS-free alternatives. The brand offers no visible third-party certifications (Bluesign, OEKO-TEX, or similar) that would indicate independent screening for restricted chemicals. Absence of disclosure does not confirm the presence of PFAS, but it prevents informed choice.
How it compares in its category
Outdoor underquilts and insulated camping layers represent a niche segment where water-resistant coatings are functional necessities. Many mainstream brands in this space (REI, Patagonia) have begun phasing PFAS or publishing coating chemistry. Hammock Gear is a smaller, direct-to-consumer brand with less public accountability infrastructure. The lack of transparency is more notable because competing products in the underquilt category increasingly label coating type or PFAS status, making Hammock Gear's silence a relative disadvantage for risk-conscious buyers.
If you buy it
Contact Hammock Gear directly to request the specific coating chemistry; most manufacturers can provide this information even if not publicly listed. Wash the underquilt in cool water before first use if you wish to reduce potential leachable residues (though efficacy depends on coating type). Avoid high-heat drying and prolonged direct sunlight, as thermal stress can degrade coatings and potentially release volatile compounds. Store dry; prolonged dampness can promote microbial growth in the insulation rather than chemical degradation of the shell.
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
- Hammock Gear has made none
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.