Making sparks with ferrocerium is easy, but making sparks in wet or windy environments is not so easy. That is why we recommend in addition to igniter also carry a firestarter - for example this one from 5ive Star Gear called Spool of Fuel.
Spool of Fuel, that is natural jute coated with a waxed blend. To start a fire just cut off a couple of inches of the waxed jute from the Spool of Fuel, and fluff up one end. In no time you have a sustained hot burning flame to start your campfire for example.
5ive Star Gear Spool of Fuel can be used in wide range of weather conditions, including wet or windy conditions. It can be lit using a ferro rod or directly with a match or lighter.
Buy 5ive Star Gear Spool of Fuel Firestarter for € 9.2