M12™ Heated Jacket powered by an M12™ battery with carbon fibre heating elements creates and distributes heat to chest, back and shoulders Superior run time, up to 11 hours of heat on a single battery charge of an M12™ REDLITHIUM™ 3.0 Ah battery pack (not included) Lightweight and highly durable ripstop polyester provides a slim design that can be worn as an outer-shell or a mid-layer (100% Polyester outer and inner shell) Reinforced high-wear zones protect from abrasion and tears Provides comfort and durability in harsh, rainy or windy environments Optimised hidden battery pocket to place M12™ battery in front or rear for increased comfort Multiple heating zones - 3 sewn in carbon fibre heating zones distribute heat to core body areas Easy one-touch heat controller - 3 .