Men's Featherweight Performance Long Leg Boxer Briefs 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 Featherweight Performance Long Leg Boxer Briefs
PFAS grade
Good 65/100
Overall grade
Good 53/100
Verdict
Skip
Hazard flags
⚑ 3
Material
polyester/nylon blend with elastane
Confidence
68%
PossibleAzo dyes and dye residue
PossibleFormaldehyde resins in finishing treatments
PossibleElastane fiber shedding and skin irritation
Reebok
Women's Air Tech Performance Brief Panties 6-Pack
PFAS grade
Good 65/100
Overall grade
Good 53/100
Verdict
Skip
Hazard flags
⚑ 3
Material
nylon, spandex, cotton blend
Confidence
72%
PossibleFormaldehyde resins in fabric finishing
PossibleAzo dyes
PossibleElastomer degradation (spandex breakdown)
Where these two actually differ
- We flag Azo dyes and dye residue, Formaldehyde resins in finishing treatments and Elastane fiber shedding and skin irritation on the Reebok and not on the Reebok.
- We flag Formaldehyde resins in fabric finishing, Azo dyes and Elastomer degradation (spandex breakdown) on the Reebok and not on the Reebok.
- The Reebok is polyester/nylon blend with elastane 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