Black Heavy Duty #5 Invisible Continuous Zipper Tape

This classic black invisible zipper tape is an essential for every sewing room. Perfect for dressmaking, tailoring, uniforms, dancewear, bags, crafts and home décor, it blends seamlessly into dark fabrics for a clean, professional finish.

Each metre includes two matching sliders, allowing you to create a custom-length invisible zip tailored to your project. The Size 5 coil features a durable 5 mm width, making it significantly stronger than a standard Size 3 invisible zip — ideal for structured garments, thicker fabrics and everyday wear.

Perfect for:

• Dresses, skirts & tailored garments

• Dancewear, performance outfits & uniforms

• Bags, accessories & craft projects

• Cushions, soft furnishings & upholstery

• Any project needing a durable, concealed fastening

All orders are cut as a continuous length from one reel.

Size 5 (or #5) refers to the coil width of 5 mm. This is stronger and more robust than a standard Size 3 invisible zip, making it suitable for bridal wear, costumes, cushions and upholstery projects where extra durability is needed.

Each metre includes two colour-matched sliders. Slide the tape into the channels and pull gently to secure.

Our video tutorial below shows the method on Size 3 tape — the technique is identical for Size 5