Waterproofing Wax for Leather vs Amazon.com: Sof Sole Instant Cleaner Foaming Stain Remover for Athletic Shoes, 5-Ounce : Health & Household: which is safer?
Amazon.com: Sof Sole Instant Cleaner Foaming Stain Remover for Athletic Shoes, 5-Ounce : Health & Household is the clear pick. Nikwax Waterproofing Wax for Leather carries a failing PFAS grade, and we never recommend buying a failing product.
Nikwax
Waterproofing Wax for Leather
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleRespiratory irritation or fume inhalation during application
ReportedPFAS in water repellency treatment
Our pick
Sof Sole
Amazon.com: Sof Sole Instant Cleaner Foaming Stain Remover for Athletic Shoes, 5-Ounce : Health & Household
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleUndisclosed surfactant composition and PFAS status
ReportedSkin and eye irritation from surfactants
PossibleFragrance allergens (if present)
Where these two actually differ
- We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Sof Sole.
- We flag Undisclosed surfactant composition and PFAS status, Skin and eye irritation from surfactants and Fragrance allergens (if present) on the Sof Sole and not on the Nikwax.
- The Nikwax is wax-based waterproofing where the Sof Sole is foaming cleaner, aqueous formula, which is most of the difference in these two grades.
Both products run through the same public rubric, which covers 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 fabric stain guard sprays, see the full ranking