H2C Brands 7V-TBL-M Volt Heated Tactical Base Layer - Medium

Micro polyester/spandex material with a brushed fleece lining Zero Layer heat system eliminates bulk while providing more efficient heat transfer Provides up to 170 degrees of soothing heat for 3.5 hours on the highest setting and up to 15 hours on the lowest setting Built-in 4 level microprocessor controller to select desired heat output Includes 7.4V 2200mAh battery and charger