Sport Separating Zipper 18"-Atom Red. COATS&CLARK-Zipper. Coats Molded Separating Zipper is a sport weight zipper constructed of chunky; molded polyester teeth that are lightweight yet strong and durable. The teeth will not freeze or corrode making it an excellent choice for cold weather outdoor wear. Use in jackets; sweaters; vests and craft items. Great in polar fleece! This package contains one 18in zipper. Available in a variety of colors: each sold separately. Made in USA.