Cotton Imported Fleece lining Zipper closure Machine Wash The Beam Men's Workwear hoodie brings you ultimate comfort and control over your own heat. It’s built-in heating system uses conductive-thread technology, powered by an industry-leading 6500 mAh Lithium Ion battery. This combination gives you up to 10-hours of heat at your fingertips. With a soft and anti-pill cotton/polyester blend along with its cozy micro-fleece lining, the Ridge hoodie provides you with comfort and warmth even when not turned on. Whether you are battling the chilly morning commute, shoveling the driveway or attending a sporting event, this is the jacket you want. Ridge’s intuitive 3-Bar LED controller gives you easy one touch control of your heating level. Heating up to toasty 140 degrees, your Ridge equips you with the power to go anywhere you need to in the cold. Available is seven sizes and multiple color options, you can find the perfect choice! Features include: soft and anti-pill cotton/polyester blend, cozy micro-fleece lining, and runs on a 6500 mAh Lithium Ion battery pack and charger.