Brompton Roll-Top Front Bag – 12.6L Expandable Hard-Shell Commuter Bag (A/C/G/P/T Line)Brompton Roll Top Front Bag 12. 6L Expandable Hard Shell Commuter Bag (A C G P T Line) The roll top front bag built for riders who carry real stuff a tablet, a lunch box, a camera, a change of clothes and want it to arrive intact. EVA hard shell on the outside, shockproof padded interlayer on the inside, and a clever expandable top that grows when you need it. Why you'll like it Roll top expandable design 6. 3L bottom + 6. 3L top, adjust capacity to