The Bosch GHJ 12+18V XA S Heated Jacket is the perfect attire to ensure dependable warmth for those who spend long hours on construction sites. It renders layering multiple items of clothing unnecessary. This jacket’s three-zone heating makes for perfect heat distribution to keep the body core warm, no matter the conditions. With three heat levels, long-lasting warmth is always taken care of. For added convenience, USB-powered devices are easily charged via the battery adaptor’s integrated port. Powered by the GAA 12V-21 charging adaptor (supplied) and 12V battery from Bosch (NOT supplied). Or, optionally, by the GAA 18V-48 charging adaptor and 18V battery from Bosch (NOT supplied). Specifications: Fabric Blend: Outer Fabric 95% Polyester, 5% Spandex, Lining 100% Polyester.Fabric Construction: Softshell, Triple Layer.