Definitions for "PANNIERS"
Bags which have been modified to be attached to a bicycle for the purpose of carrying approximately 50% more than you need. Similar to a purse. When shopping, look for panniers with a large capacity and don't buy them, as they just make your bicycle heavier.
large bike bags used by touring cyclists or commuters. Panniers attach to racks that place them low on each side of the rear wheel, and sometimes the front wheel.
The "saddlebags" that fit over a bicycle carrier to hold equipment and supplies for a trip.