Men's Mesh Jersey Performance Wicking No Fly Boxer Briefs vs Women's Air Tech Performance Brief Panties 6-Pack: which is safer?
Reebok Women's Air Tech Performance Brief Panties 6-Pack is our pick: better on PFAS and on the overall hazard picture.
New Balance
Men's Mesh Jersey Performance Wicking No Fly Boxer Briefs
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes in polyester fabric
PossibleFormaldehyde-based resins in moisture-wicking finish
LikelyFinish degradation and off-gassing over time
Our pick
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 in polyester fabric, Formaldehyde-based resins in moisture-wicking finish, Finish degradation and off-gassing over time and Microplastic shedding from mesh on the New Balance 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 New Balance.
- The New Balance is polyester mesh with moisture-wicking finish where the Reebok is nylon, spandex, cotton blend, 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 Reebok is the one to buy.
- We are less certain about the New Balance grade, at 45% confidence against 72%, because it discloses less.
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