Women's Glycerin 23 vs Active Full Insole: which is safer?

Active Full Insole is our pick: better on PFAS and on the overall hazard picture.

Brooks

Women's Glycerin 23

PFAS grade

F 20/100

Overall grade

F 0/100

Verdict

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Hazard flags

⚑ 3

Material

Knit textile upper with water-repellent coating treatment

Confidence

45%

LikelyPFAS in water-repellent coating

PossibleAntimony in polyester fibers

ReportedAdhesive and sole-upper interface degradation

Why this grade

Our pick

Vionic

Active Full Insole

PFAS grade

D 65/100

Overall grade

F 31/100

Verdict

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Hazard flags

⚑ 5

Material

Foam cushioning, textile upper

Confidence

72%

PossibleFormaldehyde resins in textile finishing

LikelyFoam degradation and microparticle shedding

PossibleAdhesive residues between foam and textile

Why this grade

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More athletic insoles & orthotics: see the full ranking