These outdoor rainproof and flame retardant heating pants are made of 50% Cotton + 50% Polyester, providing a comfortable and soft feel. With 3-speed temperature control and a stylish cargo pants design, they can be powered by USB and are perfect for various outdoor activities. Available in multiple sizes, they are easy to wash and provide the ultimate warmth in cold weather situations. Features: 1. Electric heated pants made of 50% Cotton + 50% Polyester blended, with dense stitching, giving you a comfortable and soft feeling, 3-speed temperature, pressing the on/off button to change. 2. Not only as a winter warm pants, but also be a cargo pants with a stylish look. In addition, the cold-proof pants can be washed by hand or machine. 3. This warm trouser equipped with a USB plug, 5v safe voltage, can be powered by USB, designed with zipper pocket can hold the power bank. 4. USB heating pants are perfect for all outdoor activities, such as commute, riding, skiing, hunting, sporting events or any cold weather scenario. 5. M, L, XL, XXL, XXXL optional, please check the size before purchasing, hand wash or machine wash in cold water is recommended, do not use bleach. Specification: Material: 50% Cotton, 50% Polyester Product Color: Black, Dark Grey Product Size: M, L, XL, XXL, XXXL Product Weight: 700g Package Included: 1 x USB Heated Pants