I have an ORTLIEB messanger waterproof bag. My daughter won it in a bicycle commuter contest decades ago. It is brand new and never used. Between my daughter and I, we have no need for it.
The measurements :
Closed from top to bottom - 14"
Width of the bag - 19"
Bottom width of the bag - 6 3/8"
Bottom length of the bag - 14"
With the front flap open - top to bottom - 23 1/2"
$100.00, shipped.
Kim Hetzel.