86% polyester, 6% spandex, 8% polyester fleece with polyester mesh lining. Extended inset cuffs with thumbholes. Embroidered graphics on left chest. Can be worn as a separate jacket, but for best results, the heated liner should be worn over a base layer and then under a jacket. Features a built-in temperature controller with three heat settings and a five-panel heating system: two sleeve, two chest, and one back. Connects to the bike 12V electrical system or a 12V lithium rechargeable battery (sold separately) with a temperature control flap that stores wires and folds up when not in use. Includes instruction manual, connecting harness, and accessory plug for heated pants. Includes a three year warranty. Can be worn with new heated gear and previously sold heated gloves and heated riding pants with thermostat purchased separately. Battery (sold separately) is US compliant plug type, not to be sold in markets that do not accept US plugs.