ororo Men's Lightweight Heated Vest with Battery Pack 100% Polyester; Model is 6'2" and wearing a size medium. NEAT AND TAILORED DESIGN: Lightweight insulated for you to wear in many ways with unrestricted movement; Water and wind resistant. KEEP YOUR BODY AND HANDS WARM: 2019 redesigned heating system with 4 carbon fiber heating elements generating heat across collar, mid-back, as well as underneath two pockets for core-body warmth. 3 available heating settings can be adjusted with just a simple press of the button. QUICK AND LONG-LASTING WARMTH: Fast heating in seconds with 7.4V UL/CE-certified battery; Up to 10 working hours on a single charge; USB port for charging smartphones. FOR ALL OCCASIONS: Perfect for the daily commute, walking your dog in the brisk fall air, tailgating for your favorite football team, wearing underneath your winter jacket or even in a way-too-cold office! Ideal gift for family members, friends, employees, to enjoy motorbike riding, hiking, camping, fishing, and other outdoor activities in fall and winter. EASY CARE: Machine washable; Covered by ONE YEAR WARRANTY. A: To keep it at peak performance, you should fully charge your battery before you use it or store it and then once every 3 months after you store it for the season. A: Yes. There is a USB port on the battery for charging your phone and other electronic devices. A: Yes. All ORORO heated apparel is TSA-friendly.