The Insulated Storm Shift Jacket is the warmest in our Snow line, with 2-layer GORE-TEX fabric, strategically placed Thermogreen® insulation, and a baffled, supersoft interior for wicking, waterproof warmth in even the coldest conditions. Fabric, membrane and DWR (durable water repellent) finish are made without perfluorinated chemicals (PFCs/PFAS). Made in a Fair Trade Certified™ factory.