JOBE NYLON VEST WOMEN BLUE This 50N ISO-certified strong and sturdy nylon vest is manufactured with super strong and lightweight nylon fabric and soft PE-foam on the inside. Adjustable webbing straps give this pretty-in-pink vest the perfect fit and optimal comfort. We continue to impress you with a front zipper for easy entry and strong YKK buckles. Our designers stayed up late to make sure Jobe's nylon vest has a perfect fit, to guarantee ultimate safety. Please see the size-table for more information.