Multifunctional Heated Thermal Underwear: Our thermal underwear can not only be used for winter heating, but also has obvious physiotherapy effects. Heated thermal underwear can help improve blood circulation, reduce muscle stiffness, etc., and keep the body warm. The perfect gift for the elderly, loved ones or friends. The best Thanksgiving and Christmas gifts.
Whole Body Intelligent Heating: Thermal underwear heat quickly in seconds, 8 carbon fiber heating elements generate heat across core body areas (shoulder, back, waist, Hind hip, knee), using carbon fiber heating technology, temperature controllable, quickly reach 55°C/ 131°F.
Thermal Underwear Temperature Control: Three-speed temperature control, blue energy-saving gear (42°C/108°F), white comfort gear (48°C/118°F), red warm gear (55°C/ 131°F), Press and hold the button for 3 seconds to turn on, lightly press Button one-button shift. When the temperature inside the clothes reaches 55°C, the heating will be automatically stopped.
Usb Interface: The electric thermal underwear uses a USB interface. This means you can use any 5V/2A power pack(power bank not included) to power the thermal underwear. 
material: 92% polyster+8% spsandex
package include
1x long johns