VOLT Men&rsquo;s 5V Heated Thermal Half-Zip Heated Jacket, Three Heat Settings USA-DEVELOPED: Designed, developed and shipped from right here in the USA. Our company was founded in the Pacific Northwest with a commitment to help people stay warm. You wont have to guess what youll get with Volt products. FASHION MEETS FUNCTION: This jacket looks great with a comfortable, stylish fit that make it great no matter the activity. HEATED: We didnt use complicated systems to power this jacket. Connect the included 3000mah powerbank battery then choose from 3 power level heat settings with a push of a button. FOR THE ATHLETE: The THZ gives you an athletic fit with the flexibility to perform outdoor activities while staying warm. The garment uses a 4 way stretch fabric and anti-microbial treatment. EASY TO CLEAN: Just remove the battery and throw the jacket in the machine. This was designed to make life easier, not to complicate laundry day.