Waterproof Hydrafort 5000 polyester fabric with taped seams and a DWR (Durable water-repellent) finish for all-weather protection. Rechargeable copper heating zone to regulate your temperature. Power Bank Battery Operated* Thermo-guard 140gsm body insulation. Grown on insulated hood, reflective details front and back and storm cuffs for added weather protection. Inner mobile phone pocket and battery pocket. Charge your phone on the go. 1 Zipped Chest pocket and 2 zipped lower pockets. Concealed zip in lining for embroidery access and shock cord adjusters at face and hem. Battery pack sold separately.