The boys seem to have won a wholesale victory here !
http://www.bbc.co.uk/news/uk-england-devon-40383290
"It also said that, "recognising the recent temperatures", students were allowed not to wear their jumper or blazer.
Ties were allowed to be undone and pupils were allowed to have the top button on their shirts undone and to wear their shirts untucked "if they are feeling very hot".
It added that none of the estimated 30 boys had been penalised for wearing skirts in the protest"
Common sense prevails at last !