I have written Entrosys if its OK to stick a tube down me trousers to cool me b0ll0cks, but they haven’t answered yet 
personally i just leave my zip open:D
That has got to be the stupidest thing yet developed for a bike!!
BM
Gotta say, that’s been posted before many times
About as useful as an ashtray on a motorbike . . .
Looks like a hairdrier from the 70`s.
