Flexibility: the Two Way Zipper Opens from the Top and the Bottom at the Same Time. It Can Be Used for Vests and Jackets That Need to Be Put on and Taken off Quickly, Which Meets the Needs of Different Scenarios Classic Design: the Two Way Zipper's Full and Tightly Packed Teeth Prevent Snags and Damage, and Make It More Stable and Durableainst All Kinds of Pulls and Friction Reliable and Durable: the Two Way Zipper Has Good Abrasion Resistance, Can Withstand Long-Term Use and Frequent Washing, Lightweight and Not Easy to Deform, to Ensure the Smooth Opening and Closing of the Zip Stable: the Two Way Zipper Stays Locked So You Don'T Have to Worry About the Zip Opening Accidentally Due to Friction or Force, Whether It's for Everyday Wear or Outdoor Activities Sewing Repairs, Manufacturer: WUUKEPSG