The Voltera Heated IV women's walking jacket from Regatta is perfect for adventures out in the cold. Made from waterproof and breathable Isotex 10000 fabric, it offers protection from rain and keeps you feeling fresh. The Thermoguard insulation and Heated Technology ensure you stay warm when the temperature drops. A 5V USB power bank with a minimum output of 2.1A is required to utilize the heated technology with this jacket. Please note, the battery pack is sold separately.