The Insulated Storm Shift Pants are the warmest in Patagonia's Snow line, with 2-layer GORE-TEX fabric, 60-g Thermogreen® insulation, and a baffled, supersoft interior for wicking, waterproof warmth in even the coldest conditions. Fabric, membrane and durable water repellent (DWR) finish are made without perfluorinated chemicals (PFCs/PFAS). Inseam length is 32".