Has anyone sourced a cheap but hardwearing bag or slip cover for 3ltr air bottles that will protect the bottle and everything else in your boot when you are travelling about. I have in mind some webbing / canvas bag that will save it getting chipped and crashing around into all my kit but I haven't seen anything of the right size in the usual army surplus etc.. places. Presumably the dive boys have something to carry their smaller bottles around.

Anyone got ideas or is it case of making something up ?

Cheers