MM - would it help if you were to organise a parent questionnaire asking whether all the parents who pass through the school gates each morning are for or against uniform?
The results of your questionnaire could then be forwarded to the head, chair of governers and any other interested parties in the school (teachers, other parents who are against the uniform idea)
Then you could arrange a meeting with head, governors etc to discuss your reasons.
A lot of what has been said in these posts will probably come up in a meeting as to why you are against it, and if you have prepared yourself well, then you will be able to answer all that is thrown at you.
I personally agree with uniform. In our area all schools have uniform and it has been shown to improve behaviour of the children in and out of school as they are 'proud' of the school they attend.
Uniform doesnt have to be about boaters, blazers and ties, nor does it have to be polyester!!
My sons uniform is black or grey trousers, white polo shirt, which is 100% cotton and is of a decent thick comfy quality and a red sweatshirt which ha the school logo on it, this is also cotton. The girls wear a black or grey skirt and in the winter can choose to wear trousers.
When the whole school is assembled, such as christmas celebrations, easter etc, the sea of red children looks fantastic. Also when the class are out on a school trip, they are all easily identifiable.
Our school have a non uniform day each term when the child can wear his own clothes for a 50p contribution this always goes to charity.
My son also loves his uniform and now that he is getting older he too recognises the benefits of wearing it. Non uniform days in his class have become fashion shows and if you have the wrong trainers on (for the boys) its so uncool
we have had a few tops spoilt with black marker pens that they use on their individual whiteboards and holes in trousers from footie etc etc, but its not such a big deal as if he had been wearing home clothes and had got a hole in a £20 pair of jeans.
Ive not found that I have had to spend excessive amounts of extra money on home clothes, he has enough for the weekends and school holidays without being stupid and of course with a family of 4 the washing machine is always on anyway!
We have family in France (DH is half french) and they all think the idea of wearing a uniform, however basic is a fantastic idea and a lot have introduced uniform (white v neck shirt, blue v neck sweater and dark skirt or trousers) to prevent fashion items taking over school.
In my own experience I didnt notice what other children were wearing at junior school but by the end of my sixth form used to hate non uniform days as I was always the one with no fashion sense and last seasons shoes etc!
best wishes with your fight!