Classic Messenger Bag is the original among all bicycle messenger bags. The bags are made of 100% 1830D CORDURA ENDURANCE NYLON which is one of the absolute best and most durable cordura qualities. All bags have a TPU liner on the inside which is waterproof. The shoulder strap has a comfortable adjustable padding and a quick release buckle for personal adjustment so you can get on and off the bag quickly, without having to readjust the strap. Classic Messenger Bag has a small organizer on the inside and several smart pockets. The bag has a compartment for a water bottle on the side. If you cycle and want it to sit extra firmly, there is another transverse strap to tighten on an extra reflector / lamp.