Chuck Taylor All Star Cx Exp2 4.5 Men A07199C vs Men's Fast-Trac NITRO 3 GTX: which is safer?

Where these two actually differ

• We flag Azo dyes in canvas and Formaldehyde resin finishing on canvas on the Converse and not on the Puma.
• We flag PFAS in waterproof membrane and DWR coatings, Azo dyes in synthetic fabric upper, Formaldehyde resins in fabric finishing and Adhesive and glue off-gassing on the Puma and not on the Converse.
• The Converse is Canvas upper, rubber sole where the Puma is Synthetic textile with GTX waterproof membrane, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the Converse is the one to buy.
• We are less certain about the Puma grade, at 42% confidence against 72%, because it discloses less.