The Regatta fabrics can reach a hydrostatic head rating of up to 10,000mm, which equates to a 10 metre high column of water.The Thermoguard insulation offers premium synthetic quick-drying insulating technology.When the temperature drops, activate the battery powered heating system and stay toasty. The battery pack dishes out instant heat. Heated jackets work similarly to heated blankets and heated car seats. During assembly, the back of each jacket is lined with an electronically powered copper heating zone, powered by a battery pack which sits within an inside pocket. They\'re toggled on and off via a small temperature control inside the jacket, of which there\'s up to three different heating settings to choose from.Waterproof and Breathable Isotex 10000 100% polyester marl fabric. Breathability rating 10,000/m2/24hours. Durable water repellent finish.Taped SeamsThermoguard insulationGrown on hood with adjusters.2 x zipped lower pockets. 2 way centre front zip. inner zipped security pocket.Adjustable cuffsStorm cuffsFabric: 100% PolyesterHeated TechnologyActive battery-powered heating system (battery pack sold separately)2 heated lower pocket panels and 1 heated back panelEasy on/off button3 temperature settingsSafety cut offPlease note: You should not use a heated jacket if you suffer from a serious illness or chronic health condition such as heart disease, anaemia, low blood pressure, paralysis, hypertension, diabetes or any other condition that causes poor circulation.