Basic Mid-Rise Period Brief vs Hanes Women's Comfort Period. Brief Underwear: which is safer?
Modibodi Basic Mid-Rise Period Brief is the clear pick. Hanes Women's Comfort Period. Brief Underwear carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Modibodi
Basic Mid-Rise Period Brief
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWater-resistant coating degradation
PossibleMicrobial growth and odor with improper care
Proof
Hanes Women's Comfort Period. Brief Underwear
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyFluorinated water-repellent coating (presumed PFAS)
PossibleCoating degradation and leaching with wear
PossibleFormaldehyde in finishing resins
Where these two actually differ
- We flag Water-resistant coating degradation and Microbial growth and odor with improper care on the Modibodi and not on the Proof.
- We flag Fluorinated water-repellent coating (presumed PFAS), Coating degradation and leaching with wear, Formaldehyde in finishing resins and Skin irritation or sensitization from coating additives on the Proof and not on the Modibodi.
- The Modibodi is organic cotton blend with water-resistant coating where the Proof is cotton blend with unspecified moisture/stain resistant coating, which is most of the difference in these two grades.
- The gap is 75 points, wide enough that this is not a close call, and the Modibodi is the one to buy.
- We are less certain about the Proof grade, at 45% confidence against 85%, 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 period underwear: see the full ranking