The brompton c bag including rain cover is a must have accessory for all the brompton folding bags the messenger style bag looks stylish as well as being practical with a roomy 25 litre capacity that has been kitted out with a multitude of pockets so that you can organise everything within the bag the handlebar bag comes with a high visibility rain resistant cover that is secured to the bag and has water resistant sips that keep the inside of the bag dry and protects the contents the c bag is