Non-Toxic Insoles, ranked by PFAS grade

Are insoles safe?

None of the 122 insoles we graded come back low-concern on our screen. Our grades are model-based assessments built from published materials, ingredient lists, certifications and brand disclosures, not laboratory tests, so they say what we can evidence rather than that anything is safe.

Best graded insoles here

1Cotton Insole 65 out of 100
2Addias Men's Ortholite Comfort Insoles 65 out of 100
3Adidas F50 Tunit Chassis Comfort Insole, 6US / 5.5UK / 38.67EU 65 out of 100

By materialOrganic Cotton

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The best non-toxic synthetic athletic insoles & orthotics, ranked by grade

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Buyer’s guide

What to look for in synthetic athletic insoles & orthotics, and which brands grade best and worst

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Why Cotton Insole grades highest here, and why that is not a pass

Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 3 products it beats, so you can see exactly where the 45 points between the top and the bottom of this synthetic athletic insoles & orthotics ranking come from. Nothing in this category reaches our 70 point pass mark, so this is the shape of the field rather than a recommendation.

Top graded, and still below our pass mark

65Good

Cotton Insole

Made of Cotton with possible latex or synthetic backing.

+30Category baseline. The starting point for this type of product, before anything specific to this product is counted.
+15No PFAS disclosure. No public statement from the brand about PFAS in this product.
-10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.

35risk points in total, which is a grade of 65

What the grade does not fix. It still carries one risk factor, No PFAS disclosure, and our graders recorded 2 other hazards on it. See the full breakdown.

Full breakdown

What it still grades above, and why

30Poor35 points behind the winner

Dr. Scholl's Athletic Series Sport Massaging Gel Insoles

What puts it behind. Unknown / proprietary coating, +25 points. A coating is recorded with no disclosed chemistry. The top-graded product carries no such factor.

Made of Gel compound with synthetic polymers, unspecified coatings.

+30Category baseline
+25Unknown / proprietary coating
+15No PFAS disclosure

70risk points, a grade of 30

30Poor35 points behind the winner

Ultimate Performance Advanced Support Plus Insole with F3D

What puts it behind. Unknown / proprietary coating, +25 points. A coating is recorded with no disclosed chemistry. The top-graded product carries no such factor.

Made of Unknown polymer foam/gel insole with proprietary F3D coating.

+30Category baseline
+25Unknown / proprietary coating
+15Vague safety claims only. Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.

70risk points, a grade of 30

20Bad45 points behind the winner

Dr. Scholl's Dr. Scholls Women's Athletic Series Sport Insoles

What puts it behind. Waterproof / stain-resistant treatment, +35 points. Water-repellent coating treatments have historically used PFAS. The top-graded product carries no such factor.

Made of foam, gel, fabric with moisture-wicking treatment.

+35Waterproof / stain-resistant treatment
+30Category baseline
+15No PFAS disclosure

80risk points, a grade of 20

No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.

Which synthetic athletic insoles & orthotics contain PFAS? Poor and Bad, we’d swap these

Cotton Insole

65GoodPFAS grade

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, all on its full breakdown.

Non-Toxic Insoles, ranked by PFAS grade

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Are insoles safe?

Why Cotton Insole grades highest here, and why that is not a pass

What it still grades above, and why

Which synthetic athletic insoles & orthotics contain PFAS? Poor and Bad, we’d swap these

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