The Bosch GHH 1218V XA Professional Heated Vest provides consistent body core warmth whilst maintaining maximum freedom of movement. Three-zone heating and three heat levels provide perfect heat distribution and long-lasting warmth to keep the body core warm, no matter the conditions. 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.1 x Bosch GHH 1218V XA Professional Heated Vest Large.