Born out of necessity on sub-zero commercial jobsites and developed by teams of advanced engineers, Milwaukee® Heated Gear combines patented Carbon Fiber Heating Technology with the power and durability of REDLITHIUM^™ Batteries to battle extreme temperatures. Custom developed materials maximize durability and flexibility to outperform traditional fabrics against abrasion and tearing. High-wear zone reinforcement and trade-focused features maximize utility and extend product life. You don’t expect your tools to break down, neither should your gear.