High Performance Ultra Light No-Show Tab vs Women's Quarter Crew Socks (6 Pairs): which is safer?

Where these two actually differ

• We flag PFAS in moisture-wicking treatment, Formaldehyde in synthetic textile processing, Azo dyes in colored variants and Microplastic shedding from synthetic blend on the Feetures and not on the Puma.
• We flag Azo dyes, Formaldehyde resins (finishing agents) and Microplastic shedding on the Puma and not on the Feetures.
• The Feetures is Nylon blend with moisture-wicking treatment where the Puma is Cotton/polyester blend socks, no waterproofing, 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 Puma is the one to buy.
• We are less certain about the Feetures grade, at 55% confidence against 82%, because it discloses less.