Brothers Men's Supima Cotton Boxer Briefs vs Women's Quarter Crew Socks (6 Pairs): which is safer?

Where these two actually differ

• We flag Formaldehyde resins in finishing treatments, Azo dyes and synthetic colorants, Elastane degradation and microfiber shedding and Heavy metals in pigments or dyes on the Brooks and not on the Puma.
• We flag Azo dyes, Formaldehyde resins (finishing agents) and Microplastic shedding on the Puma and not on the Brooks.
• The Brooks is Supima cotton, no surface treatment disclosed where the Puma is Cotton/polyester blend socks, no waterproofing, 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.