Serendipity Organics
A good natural option for children and women: the brand states its cotton and merino articles are GOTS-certified as 100% organic.
The tights are the exception; verify those separately before you treat them as a strict pass.
View the productDenmark; children, babies, some women.
A European (EU) source in the The Second Skin directory, chosen so it can actually be bought and shipped from Central Europe.