It is resistant to oil, gasoline, and hydrolysis (damage from water/humidity).

It is distributed under the zlib license, allowing for free use in both personal and commercial applications.

If you are referring to high-end outdoor or diving gear, is a specialized waterproof and airtight zipper.

The standout feature is its ability to remain airtight and watertight under pressure (up to 700 mbar). Key Benefits:

The mechanical design forces sealing lips tighter together when under cross-tension, increasing the strength of the seal.