Stay warmer on the cooler nights with the one-source heated sleeping bag. The mummy-shaped bag keeps you warm in temperatures as low as 32 degrees Fahrenheit using 2 heating pads—1 at the core and 1 at the roomy foot box—distributing heat throughout. Power your heated sleeping bag using the lithium-ion rechargeable battery, an interchangeable battery that works with all one-source products, and eliminate the need for multiple power sources by charging your devices through the USB port. One fully charged battery gives you 2 hours on high, 2.5 hours on medium, 4 hours on low, or 3 hours on pulse setting of warmth. A semi-sculpted hood and double batt, offset quilt construction surround your head and body to help eliminate potential cold spots. The thermolock draft tube prevents heat loss through the zipper and coletherm insulation provides better heat retention with less weight. The zip plow zipper means a snag-free opening and closing. A durable, ripstop-reinforced polyester cover ensures you get to use this sleeping bag season after season and it’s machine washable for easy cleaning. Feel warm while camping, hiking, or just enjoying the great outdoors with the one-source rechargeable heated sleeping bag.