Brompton cover - allows you to cover your bike for storage or as required by some public transport companies. Newsflash! - New version for 2018: The zip up Brompton cover is easy to fit to either seatpost or handlebars using our favourite material - velcro It works like a pac-a-mac - the cover folds into itself for storage while riding Unfold from the self contained pouch to cover the bike - useful for public transport carriers who require that bikes are covered or just to make it look neater (camouflaged?) when stored in an office for example It can be partially unzipped so that the saddle is accessible for carrying the bike while the rest is still covered - maybe The cover bag attaches to the saddle bag hooks on the back of a Brompton or Brooks saddle or to the handlebars A bag such as this is essential if travelling by Eurostar and using the Brompton to / from the train - as to carry your Brompton on board it must be inside a bag (and it's not so easy to ride around with a B bag) - it's one of our must have Brompton accessories (we always take one when travelling) Brompton covers by weight This Brompton cover and saddlebag cover is the lightest of the five Brompton carrying bags / boxes that we stock - they are listed below in weight order: Brompton saddle bag / cover - this one - lightest at approx 230g (the previous version was approx 300g) B&W folding bike bag Brompton B bag Polaris B Pod - approx 6kg B&W folding bike box - approx 11kg - heaviest