The gear bag is a useful piece of equipment to store various types of your fishing kit.
There are different types of gear bags for fishing and fly fishing in particular.
A gear bag to store your fly fishing reels while traveling is of great use.
Another gear bag for the organisation of your fly lines is a great option.
An overnite gear bag to store all your fishing needs for a day or weekend trip.
A travel duffel is great gear bag for those longer trips for a week or two.
Reel bags are great to store and protect multiple reels while in transit. They can also store Leaders Tippets and fly line cleaners.
Other gear bags like wader bags can store your wading boots, fishing waders and wading socks etc.
Then you have the Fly rod bag that can carry all your fly rods in one gear bag.