Polyester exterior, real goose down padding. Interior with specially designed heating system with 4-level adjustment button, 7.4-volt operation with 20Watt heating power. Heating of the font and back part. Possibility of connection to a 12 volt battery and to the battery of the bike, keeping the heating power unchanged. Please remember, power supplies are not included. Features Connection: Battery, cable, dual power 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 on 12 V: 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 on 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