Found this for those of you who live in areas where it's "too hot" to ride

http://lippyladiesmcc.co.uk/2013/01/29/keep-your-cool-with-ventz/

It's a lady riders website, hence the references to make up and hair, but I reckon it would work even better for those of us without airbags

Too old to die young, too ugly to leave a good looking corpse