[Steve G4WCS]

Originally Posted by Refugee

A riding helmet bag sounds expensive.
I normally use a vacuum cleaner motor filter. They are made to be cut to size.
I just linked to the first one on a search. Wilco stopped stocking them for some reason.
https://www.amazon.co.uk/Universal-V.../dp/B004A8JMSE
A cheaper one.
https://www.amazon.co.uk/dp/B078VTCW79/ref=dp_cerb_1

good shout.

the helmet bag was being cleared out anyway but I spotted its potential