Flexifit Medium Support Sports Bra vs Ultimate Support Non Wired Sports First Bra: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
Marks & Spencer
Flexifit Medium Support Sports Bra
PFAS grade
F 20/100
Overall grade
F 0/100
Verdict
Skip
Hazard flags
⚑ 5
Material
Polyester/elastane blend with water-repellent coating treatment
Confidence
42%
LikelyFormaldehyde resins (polyester finishing)
PossibleAzo dyes and synthetic colorants
PossibleAntimony in polyester
Marks & Spencer
Ultimate Support Non Wired Sports First Bra
PFAS grade
F 20/100
Overall grade
F 0/100
Verdict
Skip
Hazard flags
⚑ 3
Material
Polyamide, elastane with likely water-repellent coating treatment
Confidence
45%
PossibleAntimony in polyester/polyamide
LikelyMicroplastic shedding
LikelyElastane degradation and wear particles
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 sports bras: see the full ranking