There are two things necessary to spark a flame: oxygen and friction. However, moisture and strong winds can tamper regular fire starting methods. One solution to this problem is a waterproof match or lighter. Most permanent matches use flint or magnesium to spark a flame, along with a bit of kerosene to keep the blaze going. Others use a small battery and plasma to create the heat needed for lighting a fire, which makes them ideal for anyone who doesn’t keep lighter fluid or oil on hand. These tools are meant to be used in any weather condition to start a flame, and are a necessity for every emergency kit. Here’s why.