Give your project a professional, durable finish with the COSTUMAKERS 45 cm (18 in) one-way separating zipper in navy. Featuring #5 metal teeth on reinforced polyester tape, this medium weight zipper glides smoothly without snagging and resists corrosion, UV fading, and repeated machine‑wash cycles. The precision‑cut tape ensures uniform width for trouble‑free installation, while the ergonomic pull lets wearers suit up quickly. Ideal for fashion coats, wool jackets, rugged outerwear, it allows makers to focus on creative detailing instead of hardware failures. Each batch is tension‑tested and slider‑fatigue inspected so garments endure heavy use, seasonal elements, and frequent laundering. Whether you’re upgrading a vintage coat, crafting a fresh runway sample, or repairing a favourite jacket, choose the zipper brand trusted by professionals for tight tolerances, colour consistency, and long‑term performance.