usually a winter coat has a lot of layers and its material is woven very tightly so cold air can not get in
Wearing jackets keep you warm i would think you would wear a jacket?
Its deffinitly not jacket the real answer is sweet
so that he or she can keep their body warm...
heat keep us warm :)
hell yes
A waterproof and insulated jacket, such as a ski or snowboard jacket, is best suited for snow to keep you warm and dry in cold and wet conditions.
To keep us alive and keep us warm
As we know, a jacket is made up of many layers. We know that air is an insulator and hence doesn't let air out of the jacket nor in the jacket. Hence the jacket helps keep us warm. The fundamentals is that air is an insulator and jackets trap a layer of air between us and the outside environment.
A jacket itself does not have thermal energy, but it can help trap your body heat and keep you warm by insulating you from the cold outside environment.
I needed a fleece jacket to keep warm so I collected some wool from my sheep.
There's no "should" reason. Buy a jacket if you want one. They can keep you warm and can make an outfit look nicer, but you don't have to have one if you don't want one.
You would like to keep warm.