Svante Studio
A genuinely clean children's sport option: the EarthKnit line is 100% regenerative cotton, stitched and labelled in organic cotton, with no polyester, nylon, PFAS, formaldehyde, azo dyes or synthetic coatings.
Keep to sets where every piece is EarthKnit. Skip the Plantech leggings and crops unless the full fibre and elastic details pass. Expect UK-import shipping and slower returns.
View the productUK brand; ships worldwide.
A US source in the The Second Skin directory. Check that it ships to Europe; where it does not, the directory lists a European alternative alongside it.