36" Jacket Zipper YKK#5 ~ YKK&rsquo;s High Visibility Vislon Nomex - Separating Zip YKK Color T233 Neon Yellow (1 Zippers/pack) 36" Jacket Zipper YKK#5 YKKs High Visibility Vislon Nomex - Separating Zip YKK Color T233 Neon Yellow (1 Zippers/pack) This product is half the weight of metal zippers.