M12 TOUGHSHELL heated jacket kit. Powered by M12 REDLITHIUM battery technology and features an advanced heat technology system. Combining lightweight and durable carbon fiber heating elements, Quick-Heat functionality, enhanced fabric construction, and optimized interior liners, the M12 TOUGHSHELL heated jacket delivers heat built to outlast. The new generation TOUGHSHELL stretch polyester has been re-engineered to stretch and move while being as tough as previous TOUGHSHELL jackets. Includes a unique battery pocket Pass-Thru design that is easy to use with front or back pocket battery placement for versatility and comfort depending on the situation. This Milwaukee heated coat is a go-to for protection from the elements on the jobsite or when enjoying the outdoors.