Description Engineered for hardworking people who want all day warmth and comfort without having to think about it. Powered by clim8® Intelligent Thermal Technology, the new Carhartt X-1 Smart Heated Vest employs the latest in personalized thermo-regulation to take the manual labor out of maintaining your ideal temperature. No more juggling multiple wardrobe changes or packing to match every possible weather pattern. Just download the app to set your ideal temp and trust your new Carhartt X-1 Smart Heated Vest to the rest. Features Shell: 100% Cordura Nylon Insulation: 100% Polyester Side Paneling/Collar/Bottom Hem: 3 Layer Softshell - Face: 55% Polyester, 45% Nylon, Middle: PU film, Back: 100% Polyester Closer to body fit for efficient heating and easy layering Two exterior lower zip pockets Right pocket has stow pocket for the battery Drawcord-adjustable hem for added coverage Clim8 Intelligent Heating System: 3 heating elements (2 front chest, 1 back) & a Control Module with indicator light and tap function Powered by a 7.4V 3000 mAh Rechargeable Li-ion Battery Charger Included Back length: Large regular: 25 1/2” CORDURA® is a trademark of INVISTA for durable fabrics Model Height: 6'2"; Chest Size: 42"; Wearing size M Country of Origin: Imported Does not ship to Canada