YKK No. 5 Waterproof Open-End Zipper for Down Jackets

YKK Genuine No. 5 Waterproof Open-End Zipper for Down Jackets & Outerwear

Upgrade your garment projects with this genuine YKK No. 5 waterproof open-end zipper, purpose-built for down jackets, coats, and placket applications. Featuring a reverse single open-tail design, this zipper delivers smooth, reliable performance with a clean finish every time you zip up.

Why Choose This YKK Zipper?

• Genuine YKK Quality: Crafted by the world's most trusted zipper brand — engineered for long-lasting, consistent use across hundreds of open-and-close cycles.
• Waterproof Construction: The water-resistant tape and sealed teeth help keep moisture from seeping through the zipper channel, ideal for outerwear and down-filled garments.
• No. 5 Gauge: A versatile mid-weight sizing perfect for jackets, coats, sleeping bags, sportswear, and other heavy-duty garment applications.
• Open-End (Separating) Design: Allows the zipper to fully separate, making it ideal for front-opening jackets and down plackets.
• Reverse / Down Placket Style: The puller reverses to sit flush against the garment when closed — a popular choice for down puffer jackets and high-end outerwear.
• Nickel-Free Hardware: Suitable for sensitive skin and compliant with common garment safety standards. Contains no high-concern chemicals.
• Plastic Teeth: Lightweight yet sturdy, plastic coil teeth glide smoothly and resist corrosion — ideal for both casual and technical outerwear.
• Custom Tail Length: Available in a range of lengths to suit your specific project measurements — perfect for bespoke tailoring and alterations.

Specifications

Perfect For

• Down puffer jackets and vests
• Winter coats and parkas
• Sleeping bags and outdoor gear
• Garment repairs, tailoring, and alterations
• DIY sewing and craft projects requiring a separating zipper

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Frequently Asked Questions

Q: What does "No. 5" mean for YKK zippers?

A: The number refers to the zipper's gauge — specifically, the approximate width (in millimeters) of the closed teeth chain. A No. 5 YKK zipper is a mid-weight size commonly used for jackets, coats, sleeping bags, and sportswear, offering a balance of strength and smooth operation.

Q: What is an open-end (separating) zipper and when should I use it?

A: An open-end zipper, also called a separating zipper, allows both sides of the tape to fully detach from each other at the bottom — just like the zipper on a jacket or coat. This design is essential for any garment that opens completely from top to bottom, such as down jackets, parkas, and zip-up hoodies.

Q: Is this zipper suitable for waterproof outerwear?

A: Yes. This YKK No. 5 zipper features waterproof construction with treated tape and sealed plastic teeth designed to resist moisture penetration, making it well-suited for outerwear, down jackets, and other garments where water resistance is important.

Q: Can I use this zipper for a DIY sewing or repair project?

A: Absolutely. This zipper is a popular choice for home sewers, tailors, and garment repair professionals. It is available in custom tail lengths to fit a wide range of project sizes. Its nickel-free, no high-concern chemical construction also makes it suitable for children's and adult garments alike.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.