ZipperStop Wholesale Authorized Distributor YKK - Boot Zipper Solution YKK #5 Nylon Coil with Auto Lock Slider - Closed Bottom Color Black (9 Inches) ZipperStop Wholesale Authorized Distributor YKK- Zippers are Made in USA YKK #5 Nylon Coil with Auto Lock Slider is the preferred zipper for Boots. Color Black and Closed Bottom zipper These zippers are thoroughly tested for strength and durability. Color may vary on your monitor