Could be cleaner — real concerns, but manageable if you can't swap.
4
out of 10
The why
Nike Flyknit — engineered recycled polyester knit upper. Up to 60% recycled content on newer models. PFAS-free per FY24. Cleaner than leather alternatives but still synthetic adhesives.
What's in it
recycled polyestersynthetic dyesadhesives
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