CONTROL YOUR OWN COMFORT - The power to control heat is only one touch away in a durable built in LED controller. ALL DAY WARMTH AND CONTROL- Conductive thread heating technology and our slim 10,000 mAh/3.7 volt battery allow for extended heat during longer day trips. FEEL THE HEAT IN UNDER 30 SECONDS - With powerful 3-zone heating (2 on the front of the legs and a large zone on the hips), never worry about the cold again. EASY TO USE AND UNDERSTAND SETTINGS 3 illuminated bars clearly show you which level of heat you’ve selected. Additional features include: machine washable, form fitting, external control fob and discrete battery pocket The Men’s Basecamp heated base layer pants will keep you warm, dry throughout all of your winter activities while allowing you total control over your own heat. It’s integrated heating system uses conductive-thread technology, powered by an industry-leading 10,000 mAh Lithium Polymer battery. This combination gives you up to 8-hours of heat at your fingertips. The Basecamp pants are designed with to perform as that first layer, with a next-to-skin fit that allows you to add layers on top. Its intuitive 3-Bar LED controller gives you easy one touch control. Low, Medium and High settings allow you to customize your heat level. Available is five men's sizes. Features include: 4 conductive-thread heat zones, 6500 mAh Lithium Ion battery pack and charger Zero bulk fabric and cut, intuitive 3-Bar controller