Bicycle Touring Panniers are also known as Bike bags. You will be travelling loaded with your bicycle touring panniers to carry your gear, so you need to consider carefully the type you will purchase.
It is essential that you have two rear panniers and I find this is sufficient for all my gear when bicycle touring for up to 3-4 week. A handlebar bag for the camera, lunch and some tools can also be helpful. If you are camping front panniers will also be required because of the amount of gear you have.
When purchasing bike touring panniers consider the size (volume), durability, weight of of the bike bags, mounting system, style, color and whether it has handles.
When cycling a long distance your choice of bicycle touring panniers is essential, check out these styles.