Sierra Review, Is Sierra Non-Toxic?
Sierra averages 20 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Sierra products graded as of October 2026, and none of them reach its 70 point pass mark.
Sierra grades Bad on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
Aqua Pure
3M Aqua-Pure AP802B Whole House Filter Housing
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product. See all of them.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product. See all of them.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product. See all of them.
Does Sierra have PFAS, by category
Graded and flagged Poor and Bad, we’d swap these
Sierra
Designs Alpenglow 6 Tent
- Polyester tent fabric with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- PFAS, water-repellent coating treatments on polyester outdoor fabrics commonly use PFAS or PFAS alternatives.…
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs Clip Flashlight 2 Person Backpacking Tent
- Nylon fabric with water-repellent coating (water-repellent coating) finish
- We found no PFAS statement from the brand
- PFAS, Standard fluorochemical water-repellent coating treatments on nylon tents contain long-chain or…
4 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs Fern Canyon 4 Tent
- Polyester tent fabric with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- PFAS, Sierra has not disclosed whether the Fern Canyon 4 uses PFAS-based or PFAS-free water repellent.…
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs Full Moon 2 Tent
- Polyester ripstop with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- PFAS, Traditional polyester tent coatings rely on PFAS for water repellency; Sierra's silence on formulation…
4 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs High Route 1P Backpacking Tent
- Nylon/polyester fabric with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- PFAS, Sierra does not disclose water-repellent coating chemistry. Long-chain PFAS (PFOA-type) and newer…
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs Meteor Lite 2 Tent
- Nylon/polyester ripstop with unspecified water-repellent coating
- We found no PFAS statement from the brand
- water-repellent coating degradation and leachables, Unspecified water-repellent coating coatings can break…
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Sierra
Designs Nomad 6-Person Tent
- Polyester fabric with water-repellent coating (water-repellent coating) treatment
- We found no PFAS statement from the brand
- PFAS, Sierra has not disclosed water-repellent coating chemistry; historical industry reliance on PFAS…
3 hazards checked on this product. See all of them.
Find an alternative on AmazonSierra and PFAS, common questions
- Does Sierra have PFAS?
- Sierra averages 20 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Sierra products graded as of October 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Sierra non-toxic?
- No Sierra product we graded reaches Good. The best of them is Sierra Designs Alpenglow 6 Tent at 20/100.
- Which Sierra products should I avoid?
- The lowest-graded Sierra products we have scored are Sierra Designs Nomad 6-Person Tent, Sierra Designs Meteor Lite 2 Tent, Sierra Designs High Route 1P Backpacking Tent. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →