Means to make fire in a waterproof container
A fire bag is a handy thing to have in a wet environment.
The bag is nothing top secret, just a waterproof bag, Ortlieb, Tatonka, Sea to Summit or in my case a 3 litre Lifeventure, filled with stuff you need, or at least make it easier to start a fire.
My bag is red as it is easy to see and not so easy too loose or forget in the Woods.
The bag contains:
With such a bag one have all the things necessary to make fire in one place, both in standard camping and in an emergency.
And the contents are held dry at any times.
I fill it with new birch bark whenever I pass a three that has loose, dry bark.