What is the point of a two-way zipper?

A two-way zipper lets you open your garment and still look cool, all without catching a chill. Berluti

basic sewing: lapped zipper

Whistles Riley Trench Coat, Neutral John Lewis Duster Coat

What is a Two-Way Zipper and What is its Purpose?

Change a Double Zipper to Close in the Centre {tutorial}

YKK 10 Two-way Molded Plastic VISLON Heavy Duty Separating jacket Heavy Duty Zipper for Coat Jacket Winter Coat Select Color, 5 to 36

10 Molded Plastic Heavy Duty Two-Way Separating (Jacket) Zipper

Electric E-Scooter Front Bag Outdoor MTB Bike Bicycle Cycling Pouch Accessories

How to use a Two-Way Zipper

How to Fix a Zipper That is Stuck in Fabric