Marks and Sparks do not one but two green summer dresses in 100% cotton.
www.marksandspencer.com/Easy-Cotton-Classic-Check-Dress/dp/B0032OUUN8?ie=UTF8&qid=1277078357&categor yNodeID=53882031&ref=sr13&page=&node=57026031&sr=1-3&mnSBrand=core&_encoding=UTF8&rh=
www.marksandspencer.com/Pure-Cotton-Classic-Gingham-Dress/dp/B0032GLYVI?ie=UTF8&qid=1277078437&categ oryNodeID=53882031&ref=sr17&page=&node=57026031&sr=1-7&mnSBrand=core&_encoding=UTF8&rh=
Grey things are a problem, last year I bought 100% cotton pinis and trousers from Tesco and John Lewis. Neither have them this year. Marks has cotton black skirts/trousers.
Lint kids have grey cotton skirts/ trousers, but I've found they wash appallingly (unless things have changed recently)
www.lint-kids.co.uk/
Cotton polo shirts are available at any supermarket, ditto cotton cardis, unless you need green. Marks does cotton rich cardis/jumpers in green (89% cotton, no coatings).
It's a problem, isn't it? I hate polyester and Teflon, can't understand why most kids clothes are cotton, yet they feel the need to make uniforms in synthetic fibres and coat it in noxious chemicals - bleurgh.