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 12in zipper. Available in a variety of colors: each sold separately. Made in USA.