Shoe Care Repel Spray vs Fabric & Leather Duo-Pack: which is safer?
NikWax Fabric & Leather Duo-Pack is our pick, better on PFAS and on the overall hazard picture.
Jason Markk
Shoe Care Repel Spray
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyPFAS (per-fluorinated compounds) in water-repellent coating
PossibleInhalation hazard from spray application
PossibleSkin or eye irritation from direct contact
Our pick
Nikwax
Fabric & Leather Duo-Pack
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleVolatile organic compounds (VOCs) in spray carrier
PossibleSkin or eye irritation from direct contact
PossibleResidue buildup on treated materials over time
Where these two actually differ
- We flag PFAS (per-fluorinated compounds) in DWR coating, Inhalation hazard from spray application and Off-label or over-application toxicity on the Jason Markk and not on the Nikwax.
- We flag Volatile organic compounds (VOCs) in spray carrier and Residue buildup on treated materials over time on the Nikwax and not on the Jason Markk.
- Both carry a flag for Skin or eye irritation from direct contact, so neither choice avoids it.
- The Jason Markk is proprietary water-repellent spray coating where the Nikwax is Fabric and leather waterproofing treatment (wax-based), which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Nikwax is the one to buy.
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 shoe waterproofing sprays, see the full ranking