Built for cold weather and long days in rough conditions, the Hydronaut® Insulated Jacket and Bib deliver dependable protection without sacrificing mobility. Constructed with a durable 2-layer nylon shell and a 30K waterproof membrane, this insulated system is built to handle heavy rain, low temps, and wind. PrimaLoft® Black insulation provides all-day warmth, while YKK® Aquaguard® waterproof zippers, double cuffs, and an adjustable hood help seal out the elements.