Leather Lotion 4.0 oz vs Nano Shoe: which is safer?

Merrell Leather Lotion 4.0 oz is our pick: better on PFAS and on the overall hazard picture.

Our pick

Merrell

Leather Lotion 4.0 oz

PFAS grade

D 65/100

Overall grade

F 43/100

Verdict

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Hazard flags

⚑ 4

Material

Leather conditioning lotion, composition unspecified

Confidence

45%

ReportedFormulation transparency / undisclosed ingredients

PossibleSkin irritation / sensitization from fragrance or additives

PossibleVolatile organic compounds (VOC) during application

Why this grade

Tarrago

Nano Shoe

PFAS grade

F 20/100

Overall grade

F 2/100

Verdict

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Hazard flags

⚑ 3

Material

Textile with nano-coating water-resistant treatment

Confidence

35%

PossibleNano-coating chemical composition (unspecified)

PossibleFormaldehyde resins in lining or adhesives

ReportedCoating degradation and microparticle shedding

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 stain-resistant footwear: see the full ranking