Features: 1.Made from comfortable cotton and soft foam padding. 2.Zipper back pocket for holding your or belongings. 3.Works with your to get heated and keep you warm in cold weather.3 level of adjustable with a simple press of the button. 4.Adjustable side straps and backrest angle meet different needs. 5.Folds in half for easy storage; high-strength webbed handles for convenient carrying. 6.Suitable for stadiums, bleachers, ground, chairs or anywhere proper seating is available. Specifications: Material: 600D Oxford cloth + quilted cotton + 2cm pearl cotton + 2cm sponge + heating sheet Color: Black Size: 38 * 33 * 33cm / 15 * 13 * 13in Weight: 0.64kg / 1.4lb Package List: 1 * Cushion(power bank not included) Precautions: 1. Due to various factors such as monitor brightness, light brightness, etc., the actual color of the product may be slightly different from the image displayed on the website. 2. Please allow for slight manual measurement bias in the data.