Fire-fighters work very close to open flames. YKK® zippers are even used in their firefighting uniforms. These zippers have a base called tape on the outside of the interlocking teeth (called elements). This tape is made from a special material to prevent the elements in the zipper of the fire-fighting uniforms from easily burning or melting due to the heat.
Easy to zip and unzip and durable to heat, YKK® zippers are working well for firefighters even today.