Athletic Insoles & Orthotics, ranked by PFAS safety

16 products graded A to F, safest first. None have earned a C or better yet, so we show the full ranking and the least-concerning options first.

Graded and flagged D and F, we’d swap these

Active Full Insole

Vionic

Active Full Insole

Foam cushioning, textile upper

D
F
PFASAll
D · Elevated5 flags

Lower concern; typical insole without known PFAS drivers.

Risky category by default

Women's Slim Fit Insole

Vionic

Women's Slim Fit Insole

foam, gel, or textile insole construction

D
F
PFASAll
D · Elevated3 flags

Insole material is inherently lower PFAS risk; no brand disclosure found.

Risky category by default

Vionic Unisex Active Orthotic Full Length Insole

Vionic

Unisex Active Orthotic Full Length Insole

EVA foam, fabric backing, polyurethane adhesive

D
F
PFASAll
D · Elevated2 flags

Lower concern insole; common foam materials, no waterproofing treatment indicated.

Risky category by default

Relief 3QTR Insole

Vionic

Relief 3QTR Insole

foam, gel, or fabric cushioning

D
F
PFASAll
D · Elevated2 flags

Insole materials unlikely to contain PFAS, but Vionic provides no disclosure.

Risky category by default

Vionic Women's Active Full Length Insole

Vionic

Women's Active Full Length Insole

EVA foam, arch support structure

D
F
PFASAll
D · Elevated1 flag

Lower concern for typical EVA insole.

Risky category by default

Vionic Orthotic

Vionic

Orthotic

Foam insoles, synthetic upper, textile lining

D
F
PFASAll
D · Elevated1 flag

Orthotic footwear lower concern absent waterproof treatment disclosure.

Risky category by default

Vionic Women's Slim Fit Insoles

Vionic

Women's Slim Fit Insoles

foam cushioning, fabric topcover

D
D · Elevated

Lower concern, but no public PFAS disclosure from brand.

Risky category by default

Vionic Relief 3/4 Orthotic Insoles

Vionic

Relief 3/4 Orthotic Insoles

Foam, gel, and textile insole base

D
F
PFASAll
D · Elevated3 flags

Lower concern. No known PFAS-prone materials typical in insoles.

Risky category by default

KEEN Men's K-10 Outdoor Replacement Insole

Keen

Men's K-10 Outdoor Replacement Insole

EVA foam, textile mesh, rubber base

D
F
PFASAll
D · Elevated2 flags

Lower concern. Standard insole materials without known PFAS triggers.

Risky category by default

KEEN Men's K-30 High Outdoor Insole

Keen

Men's K-30 High Outdoor Insole

foam cushioning with textile/synthetic upper

D
F
PFASAll
D · Elevated4 flags

Insoles lack PFAS transparency; Keen's limited disclosure creates moderate uncertainty.

Risky category by default

KEEN Men's Utility K-20 Cushion Insole

Keen

Men's Utility K-20 Cushion Insole

foam cushioning, likely polyurethane or EVA

D
F
PFASAll
D · Elevated3 flags

Lower concern; standard foam insole with no PFAS-typical features identified.

Risky category by default

KEEN Men's Utility K-10 Replacement Insole

Keen

Men's Utility K-10 Replacement Insole

EVA foam, fabric lining

D
F
PFASAll
D · Elevated1 flag

Lower concern; standard insole without water treatment.

Risky category by default

KEEN Men's Utility K-30 Low Arch Insole

Keen

Men's Utility K-30 Low Arch Insole

Foam cushioning (EVA or polyurethane base)

D
F
PFASAll
D · Elevated2 flags

Lower concern; no reported PFAS triggers in basic insole design.

Risky category by default

Keen Utility K-30 Arch Insole

Keen

Utility K-30 Arch Insole

Foam, fabric, possibly textile blend

D
F
PFASAll
D · Elevated2 flags

Lower concern; basic insole, no known PFAS-prone features.

Risky category by default

KEEN Outdoor K-10 Replacement Insole

Keen

Outdoor K-10 Replacement Insole

Foam/cushioning insole, likely EVA or polyurethane base

D
F
PFASAll
D · Elevated2 flags

Lower concern. No known water-resistant treatment typical for insoles.

Risky category by default

KEEN Men's Outdoor K-20 Plus Insole

Keen

Men's Outdoor K-20 Plus Insole

foam/gel insole with moisture-wicking treatment

F
F
PFASAll
F · High PFAS3 flags

Insole likely waterproofed; Keen does not disclose PFAS status.

Waterproof or stain-proof treatment

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