Is ASSOS PFAS-free?
Across 8 graded products, ASSOS averages F (54/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade C or better yet. Grades are model-based estimates, not lab results.
Graded and flagged D and F, we’d swap these
ASSOS
R Socks S9 Twin Pack Cycling Socks
Merino wool blend, synthetic fibers
Lower concern, cycling socks without water-repellent finish; modest PFAS risk unless brand adds hidden water-repellent coating treatment.
⚠Risky category by default
ASSOS
GT Socks C2
Merino wool blend (primary); standard yarn dyeing and finishing
Lower concern, natural fiber socks with no public PFAS risk indicators, but brand transparency is minimal.
⚠Risky category by default
ASSOS
Endurance Socks S11
Merino wool blend (primary fiber)
Lower-concern socks; natural fiber base unlikely to require PFAS treatments, but no public disclosure from ASSOS.
⚠Risky category by default
ASSOS
Signature Socks Evo
Merino wool blend with synthetic fibers (likely polyamide/nylon)
Lower PFAS concern, but merino-synthetic blends warrant caution without explicit disclosure.
⚠Risky category by default
ASSOS
TRAIL Socks EVO blackSeries SALE
Merino wool blend (primary); standard textile fibers
Lower concern; typical athletic socks with no known PFAS triggers, but ASSOS offers no public PFAS commitment.
⚠Risky category by default
ASSOS
R Socks Twin Pack
Merino wool blend (primary), nylon/elastane components
Lower PFAS concern; natural-fiber socks without typical treatment triggers, but brand transparency is absent.
⚠Risky category by default
ASSOS
Rsr Socks
Merino wool blend with water-repellent coating finish
High-performance cycling socks likely treated with water-repellent coating; ASSOS discloses nothing about PFAS, contact them directly.
⚠Waterproof or stain-proof treatment
ASSOS
Mille Gt Socks
Merino wool blend with water-repellent coating treatment
Skip until ASSOS clarifies water-repellent coating chemistry, standard finishes often contain PFAS.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →