Do Keen synthetic athletic insoles & orthotics have PFAS?
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.
Keen synthetic athletic insoles & orthotics average 59 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Keen synthetic athletic insoles & orthotics graded as of October 2026, below the 65 out of 100 median for the 19 other synthetic athletic insoles & orthotics brands graded alongside it.
Keen synthetic athletic insoles & orthotics average Good on our four-band scale. None of them clear our buy threshold. That is above 18% of the synthetic athletic insoles & orthotics brands we grade.
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.
Graded and flagged Poor and Bad, we’d swap these
Keen
Men's K-10 Outdoor Replacement Insole
- EVA foam, textile mesh, rubber base
- We found no PFAS statement from the brand
- EVA degradation and microparticle shedding, Over extended use, EVA foam can fragment and shed microscopic…
2 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Men's Utility K-10 Replacement Insole
- EVA foam, fabric lining
- We found no PFAS statement from the brand
- Microplastic shedding or foam degradation, Prolonged wear and friction can cause minor foam particle…
Keen
Men's Utility K-20 Cushion Insole
- foam cushioning, likely polyurethane or EVA
- We found no PFAS statement from the brand
- VOC off-gassing from polyurethane or EVA foam, New foam insoles routinely off-gas volatile organic compounds…
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Men's Utility K-30 Low Arch Insole
- Foam cushioning (EVA or polyurethane base)
- We found no PFAS statement from the brand
- Adhesive or binding agent toxicity, Insole construction requires adhesives to bond foam, backing, and any…
2 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Utility K-30 Arch Insole
- Foam, fabric, possibly textile blend
- We found no PFAS statement from the brand
- Foam degradation and odor, EVA and polyurethane foam can break down under prolonged moisture, heat, or…
2 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Men's K-30 High Outdoor Insole
- foam cushioning with textile/synthetic upper
- We found no PFAS statement from the brand
- Azo dyes in textile upper, Synthetic textile uppers on insoles are often dyed with reactive or acid azo dyes…
4 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Outdoor K-10 Replacement Insole
- Foam/cushioning insole, likely EVA or polyurethane base
- We found no PFAS statement from the brand
- Foam degradation and microfragmentation, EVA and polyurethane insoles degrade mechanically over time with…
2 hazards checked on this product. See all of them.
Find an alternative on Amazon
Keen
Men's Outdoor K-20 Plus Insole
- foam/gel insole with moisture-wicking treatment
- We found no PFAS statement from the brand
- PFAS, Outdoor insoles with moisture-wicking claims are almost universally treated with fluorinated compounds.…
3 hazards checked on this product. See all of them.
Find an alternative on AmazonBetter synthetic athletic insoles & orthotics from other brands
Graded higher than the Keen average of 59.
Cotton Insole
- Cotton with possible latex or synthetic backing
- We found no PFAS statement from the brand
- Adhesive/backing composition (unknown)
2 hazards checked on this product. See all of them.
Find an alternative on Amazon
Addias Men's Ortholite Comfort Insoles
- Ortholite cushioning foam, polyurethane base
- Volatile organic compounds (VOCs) from polyurethane
3 hazards checked on this product. See all of them.
Find an alternative on Amazon
Adidas
F50 Tunit Chassis Comfort Insole, 6US / 5.5UK / 38.67EU
- EVA foam, mesh textile lining
- Azo dyes in mesh textile
3 hazards checked on this product. See all of them.
Find an alternative on AmazonThe same question, asked of the other synthetic athletic insoles & orthotics brands
Best average grade first. Keen averages 59.
See every Keen product we grade on the Keen brand page, or the full synthetic athletic insoles & orthotics ranking.