Cotton! Navy school uniform desperately wanted

Sometimes, the 100% Polyester in the school uniform is really getting on my nerves. I mean, the little ones have to wear that stuff for the entire day. I'd develop a rash running around in teflon coated polyester - but then I don't have a huge desire to skid on the grass or climb onto street lamps. So maybe the youngsters just get what they deserve.

There are some web sites specialising in eco friendly or ezcema friendly school uniform - but as so often very little in available in navy.

Here are the only cotton school uniform dresses and trousers in navy that I have found:

Girls navy pleated skirt for £13.99
http://www.lint-kids.com/ourshop/prod_2309622-Girls-Navy-Skirt.html
I this web site is selling exactly the same one:
http://www.nigelsecostore.com/acatalog/Girls_Organic_Pleated_Navy_Skirt.html

Boys Blue Trousers again from Lint
They are currently out of stock, but should cost £17.99
Made from organic cotton
http://www.lint-kids.com/ourshop/prod_2308407-Boys-Blue-Trousers.html

I have not seen these items myself, so I can't comment on how good they are.