https://www.digitaltrends.com/outdoors/best-heated-clothing/
In some places the weather can change drastically and can require a change in clothing. Some people need many jackets that range, from light to heavy. A better alternative is an electrical heated jacket that can change temperature at anytime and can be used for many different climates.
This relates to engineering because the manufactures must make a jacket that has heater and an electric system but still be light and comfortable.
