Icon Underwear Review, Is Icon Underwear Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 3 graded products, Icon Underwear averages Poor (40/100). On disclosure, the brand says nothing publicly about PFAS. 1 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Icon Underwear Good or better, safest first
Icon Underwear
The High Waisted Period. in Organic Cotton For Heavy Flows
organic cotton with absorbent gusset
Azo dyes in textile coloring
Organic cotton does not rule out synthetic azo dyes used in dyeing or printing. Icon does…
Formaldehyde / VOCs
Organic cotton is still typically finished with formaldehyde-based resins for wrinkle…
Gusset absorbent chemistry (unknown)
Icon does not publicly identify the absorbent material in the gusset (cellulose, sodium…
Antimony in polyester or nylon components
If the gusset or reinforcement uses polyester or nylon (likely but unconfirmed), antimony…
Lower concern. Organic cotton base unlikely to harbor PFAS.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Icon Underwear
Icon Intimates & Sleepwear | Icon Undies Hi-Waist Period Underwear Panties Size Xs Beige (For Moderate Leaks) | Color: C
Cotton blend with water-resistant treatment (likely water-repellent coating finish)
Fluorocarbon-based water-resistant coating (water-repellent coating finish)
Water-resistant intimates almost certainly use a water-repellent coating finish; Icon…
Coating degradation and microfiber shedding over time
water-repellent coating coatings degrade with washing and wear, potentially releasing…
Period underwear likely contains water-resistant coating; PFAS status unclear from brand.
⚠Waterproof or stain-proof treatment
Icon Underwear
Icon By Thinx Speax Bikini Women Ladies Underwear Bladder Moderate
Fabric with moisture-wicking and waterproof coating
Waterproof coating leaching (Teflon-family coating or polyurethane-based)
Icon does not disclose the waterproof resin system. If Teflon-family coating-based…
Coating microparticle shedding during washing
Waterproof textile coatings, particularly polyurethane and some Teflon-family coating…
Inadequate rinsing of residual coating chemicals
Manufacturing residues from waterproof coating application (unreacted monomers…
Moderate bladder protection likely requires water-resistant treatment; coating chemistry unclear.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →