What is the difference between a Nike authentic football (soccer) jersey and a Nike Replica Jersey?

well generally it would be easy to tell because of quality of material , the reason people make fakes because of cheap materials and unskillfully way of putting things together , its mostly to tell a difference between real and fake because of labels and the way the logos on a football tops , also the materials they use are like the best for the sporting environment , where as the fake thing looks the same but will use a substitute that will not preform as well and could fall apart like in the wash or the colour may even change , these are just a few things