Non-roll Elastic 1 brown-light-zippers A 2-way zipper that opens

A 2-way zipper that opens from the middle can be constructed from nylon coil zipper chain or molded plastic zipper chain

This zipper is compatible with the #7 reverse bale slider for water resistant nylon coil zipper (PSLCL07-102) sold by Zipper Shipper® (as seen in photo)

#8 is the perfect in-between size for those looking for something heavier in weight than a #5

#5 sliders for molded plastic zippers sold by Zipper Shipper® are compatible with this zipper chain

Shiny / Polished Silver

Non-roll Elastic 1 brown-light-zippers A 2-way zipper that opensThis non roll elastic holds up better than the elastic that is generally sewn into clothing at the factory. It is especially good on knits and polyester fabric. Non roll elastic is washable and dry cleanable, and will withstand chlorinated water in swimming pools. Non roll elastic is stiffer than braided elastic. Braided elastic is available here.