Sof Sole Review, Is Sof Sole Non-Toxic?
Across 4 graded products, Sof Sole averages Good (55/100). On disclosure, the brand says nothing publicly about PFAS. 1 of its products grade Good or better. Grades are model-based estimates, not lab results.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Worth buying from Sof Sole Good or better, best-graded first
Sof Sole
Mink Oil Leather Shoe Protectant and Conditioner
mink oil and neatsfoot oil blend
Fragrance allergens or undisclosed odorants
Mink oil and neatsfoot oil have natural musky odors that some users may find irritating…
Rancidity and oxidation byproducts over time
Animal oils are prone to oxidation if exposed to heat, light, or air, producing rancid…
Microbial growth in open or contaminated containers
Natural oils without synthetic preservatives can support mold or bacterial growth if…
Natural oils, lower PFAS concern.
⚠Starting grade for this product type
Graded and flagged Poor and Bad, we’d swap these
Sof Sole
Mink Oil Leather Shoe Protectant and Conditioner
mink oil leather conditioner and protectant
Volatile organic compounds (VOCs) / formulation off-gassing
Mink oil itself is not volatile, but if the product contains synthetic water-repellent…
Coating degradation and reapplication frequency
If water-repellent additives are present, their durability depends on formulation…
PFAS
Water-repellent leather conditioners historically used PFOA/PFOS; Merrell's silence on…
Leather protectant water-repellent properties; brand won't disclose PFAS.
⚠Brand says nothing about PFAS
Sof Sole
Waterproof Shoe Protectant
Waterproof spray coating, composition unspecified
Inhalation exposure to volatile organic compounds (VOCs) and propellant gases
Aerosol spray products inherently release propellants (typically hydrofluorocarbons or…
Skin and eye irritation from spray mist or solvent contact
Aerosol overspray can contact unprotected skin or eyes. Most shoe protectant sprays list…
Accumulation of coating residue and potential microcracking on shoe material over repeated
Multiple layers of spray coating can build up on shoe uppers, potentially restricting…
Unknown additives (UV stabilizers, biocides, or silicones) in undisclosed formulation
Waterproof coatings often include antimicrobial agents or UV absorbers to extend shelf…
Skip until brand discloses waterproof coating chemistry.
⚠Waterproof or stain-proof treatment
Sof Sole
Water Proofer
Waterproofing spray coating, composition unspecified
PFAS
Fluorinated water repellents are the industry standard for durable performance; Sof Sole…
Volatile organic compounds (VOCs) from solvent carriers
Waterproofing sprays typically use hydrocarbon or aromatic solvents to deliver active…
Coating degradation and microplastic shedding
Spray-applied waterproofing coatings can degrade with washing and wear, potentially…
Inhalation exposure during application
Aerosol and pump spray application poses acute inhalation risk from propellants…
Wait for Sof Sole to share waterproofing chemistry or certifications.
⚠Waterproof or stain-proof treatment
Sof Sole and PFAS, common questions
- Does Sof Sole have PFAS?
- We graded 4 Sof Sole products, averaging Good (55/100). 1 grade Good or better. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Sof Sole non-toxic?
- Sof Sole Mink Oil Leather Shoe Protectant and Conditioner is the highest-graded Sof Sole product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Sof Sole products are lower concern for PFAS?
- The highest-graded Sof Sole products we have scored are Sof Sole Mink Oil Leather Shoe Protectant and Conditioner. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Sof Sole products should I avoid?
- The lowest-graded Sof Sole products we have scored are Sof Sole Water Proofer, Sof Sole Waterproof Shoe Protectant, Sof Sole Mink Oil Leather Shoe Protectant and Conditioner. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →