Men's 7 Pack Performance Boxer Briefs, Medium vs Women's Air Tech Performance Brief Panties 6-Pack: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
Reebok
Men's 7 Pack Performance Boxer Briefs, Medium
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFormaldehyde resins in fabric finishing
PossibleAzo dyes and colorfast stability
PossibleElastane (spandex) breakdown under heat or UV
Reebok
Women's Air Tech Performance Brief Panties 6-Pack
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFormaldehyde resins in fabric finishing
PossibleAzo dyes
PossibleElastomer degradation (spandex breakdown)
Where these two actually differ
- We flag Azo dyes and colorfast stability and Elastane (spandex) breakdown under heat or UV on the Reebok and not on the Reebok.
- We flag Azo dyes and Elastomer degradation (spandex breakdown) on the Reebok and not on the Reebok.
- Both carry a flag for Formaldehyde resins in fabric finishing, so neither choice avoids it.
- The Reebok is Cotton blend, elastic waistband where the Reebok is nylon, spandex, cotton blend, 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.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More sports performance undergarments: see the full ranking