95% Polyester, 5% Spandex Imported Elastic closure Machine Wash ?【Fashion Daily Wear & Fleece Lined 】The leggings come with the super comfy fleece lining, keep you super warm in cold weather, Basic black leggings for women are suitable for all-weather, seasons, and occasions, They can be worn under your shirt to the office, with a tank top and a pair of sneakers to exercise, with your casual wear to go to the mall, Casual or fashion, fun or pretty ?【Quick Safety & Long-Lasting Warmth】Up to 7 Hours of Adjustable Heat-Feel the heat in seconds with the 7.4V UL certified battery（10000mAh included）. A single charge of the battery provides up to 7 hours of runtime. Easily cycle through three different heating settings with a simple press of the button. Bonus: one USB port on the battery for charging smartphones. ?【Detachable belt & washable】 The Electric Pants with a detachable and adjustable belt, so you can adjust the looseness of the waist according to your needs or remove it ! (①Choose your usual size if you want a slimming effect or to wear as underwear. (②Please choose a Larger size if you want a loose fit. ) you can hand wash or machine wash without any risk of damage. When washing in the washing machine, please remove the battery and put it in the laundry bag. ?【Larger Heating Area & Higher Temperature】Ugkwo heated pants have 3 heating areas total 6 pieces carbon fiber heating panels;That makes up a 180 Square inch heating area which 30% larger than others on the market. The heating temperature range from 122°F to 158°F which will make a better work for the warmth you needed, It is much more comfortable than others pants temperature range from 100°F to 130°F ?【3 Temperature Control &Light-Out Design】The controller light can be on/off while the heated Pants is working, meet for you different demand! Double click to Light on/off ! What's more, Heated pants feature 3 heat settings so you just need to press and hold the power switch button for 3-5 seconds to select your preferred temperature: High ( Red Light, 158℉, 2.5-3.5hours), Medium (Green Light, 140℉, 3.5-4.5hours), and Low ( Blue Light, 122℉, 5-6.5 hours). Show more