Want to dress light but warm in winter? Take a look at our this intelligence down heated jacket! Filled with more down than normal light and thin ones it absolutely keeps you warmer. The highlight of this heated down jacket is its heating function. Different from others it's powered by power bank and it won't heat itself without a power bank. And you can use the heating function whenever and wherever possible with your own power bank. For convenience a pocket is designed for taking the power bank. More than that the temperature can be adjusted by simply pressing the logo shaped button. By adopting nanotechnology its safe and insulating so that you can rest assured to use. The pursuit of perfection in detail ensures this heated down jacket quality guaranteed. You will be happy to have it. --100% nylon with a super soft touch and the surface is windproof and water repellent --Filling with water repellent duck down for better warm performance and which dry faster in wet environments than ordinary ones --Adopting advanced nanotechnology for the instant safe and insulated heating function --4 temperatures (127.5 118.5 109.5 100.5) that can be adjusted by simply pressing the logo-printed button below the pocket --Powered by power bank (not included) so that you can use heating function whenever and wherever possible --A pocket is designed with the USB interface for placing the power bank --Hand washing or gentle machine washing is required to keep its performance --Filled with more down this jacket is extra warm than others --Exquisitely sewn with fine stitches to keep down from coming out and uses YKK zippers --Simple and practical --Tips for Clean and Care: --a. Hand wash cold --b. Please do not bleach iron or dry clean --c. Please wash with like colors --d. Please wash on the gentle cycle