Bit the bullet and bought the Borough waterproof backpack in copper. Thought people might find it helpful to see the size compared to the bike. : r/Brompton
BROMPTON Borough Waterproof Backpack M in Graphite | 808 Cycles
Brompton Junction Melbourne on Instagram: "Borough Waterproof Backpacks now in store! Keep it landscape when mounted to your bike, and portrait when on your back and you won't go wrong with this