With the Brompton Transport Bag your Brompton (or other compact 16" folding bike) can be stored completely inside the bag, which is closed by a zip. In some countries this is obligatory for public transport. The only disadvantage of this bag, compared to the cover, is that the transport wheels cannot be used anymore and so the bike has to be carried. For this, two big handles are sewn onto the bag, and a strong 2" shoulder strap comes with it. The Brompton Transport Bag can be stored in a pouch that can be attached to the Brompton's saddle.

Note: Don't store your bike for longer periods in a closed bag as temperature changes might cause condensation with rust as a result.