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

D 65/100

Overall grade

F 53/100

Verdict

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Hazard flags

⚑ 3

Material

Cotton blend, elastic waistband

Confidence

72%

PossibleFormaldehyde resins in fabric finishing

PossibleAzo dyes and colorfast stability

PossibleElastane (spandex) breakdown under heat or UV

Why this grade

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)

Why this 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 waterproof sports & performance undergarments: see the full ranking