Does connected cable in heated clothing matters?
For most heated clothing, you can not see the heating element but you could still see the cable for connecting your batter or other stuffs.
When designing the heated clothing, engineer will balance between cable's size (fexiblility) and the using enviroment.
For example, if you simple outdoor,not very cold, the power consumsion is low, then they will use small cable, even it's unnoticable one, small connector but enough durable one.
If you use it for cold weather, like a motorcycle, consuming large power,then they will use larger cable,larger connector for more durable to use.