Waterproofing Wax for Leather vs Amazon.com: Sof Sole Water Proofer Spray for Shoes, Boots, and Jackets PFAs FREE : Clothing, Shoes & Jewelry: which is safer?

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 Inhalation of spray aerosol and volatile organic compounds (VOCs), Skin or eye irritation from spray contact, Formulation opacity and ingredient disclosure and Flammability risk if sprayed near ignition sources on the Sof Sole and not on the Nikwax.
• The Nikwax is wax-based waterproofing where the Sof Sole is water-repellent spray coating on fabric/leather, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.