Polyester exterior, real goose down padding. Interior with specially developed heating system with 4-level adjustment button, 7.4-volt operation with 20 Watt heating power. Heating the font and the back part. Possibility of connection to a 12 volt battery and to the battery of the bike, keeping the heating power unchanged. Features connection type Battery, cable, dual power Technical information 12 V - 50.0 W - 4.2 AH 4-Level 7.4 V - 20.0 W - 2.7 AH Bike powered Dual Power, Li-Po battery Duration 12V Level 1 (White) - 8:30 hours Level 2 (Blue) - 6:45 hours Level 3 (Purple) - 5:15 hours Level 4 (Red) - 4:00 hours Duration 7.4 V Level 1 (White) - 7:30 hours Level 2 (blue) - 5:00 hours Level 3 (Purple) - 3:45 hours Level 4 (Red) - 2:45 hours Please note that no power supplies are included!