If, for some bizaar reason you decide to pop your cover in the washing machine to get rid of all the cruddy oil stains that are from your old bike that are messing up your new bike, please be aware that this makes the cover as watertight as a fishes flip-flops
Someone I know was stupid enough to do this and had to reseal the whole bloody thing with a large tin of ScotchGuard
Got the stains out the fluffy white interior though