Comes with two batteries. Size medium but fits more like a large.

ENHANCED DESIGN: lightweight flexible material, strategically placed heating elements, extended length for full torso coverage and more
THREE QUICK-WARMING CORE HEAT ZONES: two chest zones and one lower back zone provide thorough and efficient heat distribution
THREE HEAT LEVELS FOR CONTROL AND COMFORT: provides the right temperature regardless of the weather
RUGGED OUTER SHELL MADE FROM 100 PERCENT POLYESTER: wind and water-resistant
ADJUSTABLE SLEEVES AND WAIST: for maximum comfort and coverage while working or playing
INCLUDES: jacket, Bosch 12V 2.0Ah battery, portable power adapter and charger
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