Is Sweaty Betty PFAS-free?
Across 12 graded products, Sweaty Betty averages F (43/100). 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
Sweaty Betty
Power Workout Leggings
nylon/elastane blend (synthetic knit)
Lower PFAS concern likely, but limited public transparency on treatment chemicals.
⚠Risky category by default
Sweaty Betty
Women's Pants & Jumpsuits Sweaty Betty Power 7/8 Workout Leggings
nylon/spandex blend (stretch athletic fabric)
Lower concern for PFAS, but brand offers no transparency on fabric treatments.
⚠Risky category by default
Sweaty Betty
Women's Power High Waist 7/8 Workout Leggings
Nylon/polyester blend with standard elastane
Lower PFAS concern, standard athletic leggings without water-repellent coating claims, but brand offers no transparency.
⚠Risky category by default
Sweaty Betty
Ultimate Studio Yoga Leggings
Nylon blend with spandex (presumed standard water-repellent coating finish)
Lower concern for base fabric, but water-repellent coating composition unclear, contact brand for specifics.
⚠Risky category by default
Sweaty Betty
Women's Stamina Seamless Sports Bra
nylon/elastane blend, no known water-repellent coating
Lower concern; no water-repellent coating treatment typical for standard sports bras.
⚠Risky category by default
Sweaty Betty
Stamina Seamless Sports Bra
nylon/elastane blend, no documented PFAS-containing treatments
Lower concern; basic sportswear with no waterproof claims.
⚠Risky category by default
Sweaty Betty
Womens Sweaty Betty Power Workout Leggings
nylon/spandex blend with water-repellent coating (water-repellent coating) finish
Higher concern due to likely water-repellent coating treatment; no PFAS disclosure or third-party verification.
⚠Waterproof or stain-proof treatment
Sweaty Betty
Power UltraSculpt High Waist Piping Leggings
Nylon/elastane blend with water-repellent treatment
Activewear with likely water-repellent coating treatment but no PFAS disclosure; higher risk warrants caution.
⚠Waterproof or stain-proof treatment
Sweaty Betty
Power Piping Workout Leggings
Nylon/polyamide blend with water-repellent coating finish
Moderate concern: athletic leggings with moisture-wicking coating likely treated with legacy or undisclosed water-repellent coating agent; Sweaty Betty silent on PFAS.
⚠Waterproof or stain-proof treatment
Sweaty Betty
Power Colourblock 7/8 Workout Leggings
Nylon/polyester blend with water-repellent coating treatment
Skip unless brand discloses water-repellent coating chemistry, standard moisture-wicking leggings carry inherent PFAS risk from water-repellent finishes.
⚠Waterproof or stain-proof treatment
Sweaty Betty
Power High Impact Sports Bra
nylon/polyester blend with likely water-repellent coating finish
High-impact sports bra likely treated with water-repellent coating; brand silent on PFAS.
⚠Waterproof or stain-proof treatment
Sweaty Betty
Women's Power Medium Impact Sports Bra
polyamide/nylon blend with water-repellent coating finish
Silent on PFAS; typical water-repellent coating sport bra carries moderate concern.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →