How to make DIY Bike Panniers

Step 3 Things to Look For in a Bag

All of this can be improvised. You don't need all of the features you see here, some help - but not having them doesn't make the bag unsuitable.

Inner Pocket
This is a super thin pocket used to store something like a map. In the case of my bag, it stores the backpack straps when not being used as a backpack. This is very helpful to have as it keeps your backplate separate from the main storage compartment. This pocket should have a zipper to keep it closed.

Comfy Handle
As you'll probably be mounting and dismounting this pannier, it's a good idea to have a handle to carry your bag with. It serves another purpose by providing a nice sturdy grabbing point to remove and mount the bag.

Storage
If the bag is too small, it probably won't be very useful. By the same token, bags that are too big are easily overloaded and don't make for easy travel. Ask yourself what you need - what you really need.

Extra super nice features include buckles, hooks, etc. My bag has two hooks near the bottom where the backpack straps mount - this is a perfect mounting place to secure the bottom of the bag.

You don't want a bag with too many dangley bits. These are liable to get caught in your drive train or spokes unless managed.