Men's Premium 3 Inch Trunk No Fly 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 Premium 3 Inch Trunk No Fly
PFAS grade
D 65/100
Overall grade
F 47/100
Verdict
Skip
Hazard flags
⚑ 3
Material
nylon mesh and polyester liner, no waterproofing treatment
Confidence
72%
PossibleAzo dyes
PossibleAntimony in polyester
ReportedMicrofiber shedding
Our pick
Reebok
Women's Air Tech Performance Brief Panties 6-Pack
PFAS grade
D 65/100
Overall grade
F 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)
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 waterproof sports & performance undergarments: see the full ranking