100% Polyester Polyester lining Machine Wash NEAT AND TAILORED DESIGN WITH DURABLE FABRIC: Softshell fabric exterior with breathable linning ensures you don't lose any excess heat and enjoy comfortable warmth; Detachable hood is specially designed for chilly mornings and extra protection on windy days; Water and wind resistance for your unrestricted movement towards outdoor HEAT ACROSS BODY: 3 carbon fiber heating elements generate heat across core body areas (left & right chest, mid-back); Adjust 3 heating settings (High, medium, low) with just a simple press of the button QUICK AND LONG-LASTING WARMTH: Heat quickly in seconds with 7.4V UL/CE-certified battery; Up to 10 working hours; USB port for charging smartphones and other mobile devices FOR ALL WALKS OF LIFE AND ADVENTURES: Ideal and warm choice for you, family members, friends, employees, to enjoy outdoor activities Easy care: Machine washable; The heating elements and jacket construction are designed to endure 50+ machine wash cycles