The YKK 5vs Vislon is the most popular jacket zipper in the world. It is the industry standard and is unmatched in quality and performance.  Don't be fooled by off-brand department store brand. Genuine YKK is tops in quality and durability. 30" length (30" of teeth) with a 1" top extension. Locking slider. We include 2 top stops if you wish to shorten the zipper.