Description: This waistcoat has three levels of temperature control and five zones of intelligent heating you can adjust the temperature according to yourself. Light-weighted thermal insulation material allows you to move without restriction and with the built-in USB interface you can charge it with a mobile power supply. It is made of polyester material. The chest circumferences of S size and L size are 98cm 118cm and the lengths of S size and L size are 55cm 57cm. It is suitable for daily commuting camping outdoor activities in cold winter etc. Item Name: Electric Waistcoat Material: Polyester Size Details: Size S: Width: 49CM/19.29 Length: 55cm/21.65 (Approx.) Size L: Width: 59CM/23.23 Length: 57cm/22.44 (Approx.) Notes: Due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Electric Waistcoat