Could be cleaner — real concerns, but manageable if you can't swap.
4
out of 10
The why
On Running Cloud — Helion superfoam midsole + TPU CloudTec pods + synthetic upper + chemical adhesives. Swiss performance brand, no PFAS DWR on shoes, no OEKO-TEX but cleaner than most Nike/Adidas equivalents.
What's in it
Helion foamTPUsynthetic textileadhesives
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