Icon By Thinx Speax Bikini Women Ladies Underwear Bladder Moderate vs Basic Mid-Rise Period Brief: which is safer?
Modibodi Basic Mid-Rise Period Brief is the clear pick. Icon By Thinx Speax Bikini Women Ladies Underwear Bladder Moderate carries a failing PFAS grade, and we never recommend buying a failing product.
Icon Underwear
Icon By Thinx Speax Bikini Women Ladies Underwear Bladder Moderate
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleWaterproof coating leaching (Teflon-family coating or polyurethane-based)
ReportedCoating microparticle shedding during washing
PossibleInadequate rinsing of residual coating chemicals
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
Where these two actually differ
- We flag Waterproof coating leaching (fluoropolymer or polyurethane-based), Coating microparticle shedding during washing and Inadequate rinsing of residual coating chemicals on the Icon Underwear and not on the Modibodi.
- We flag Water-resistant coating degradation and Microbial growth and odor with improper care on the Modibodi and not on the Icon Underwear.
- The Icon Underwear is Fabric with moisture-wicking and waterproof coating where the Modibodi is organic cotton blend with water-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 Icon Underwear grade, at 35% 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