What is the difference between regular fleece and polartec fleece?

both are 100%polyester but theres the distinction between fleece and ploartec it isn't more then a trademark brand expert opinion polartec is not natural material clothes made of polartec provides outstanding warm insulation without the weight and bulk of traditional insulating fabrics last longer and are more lightweight then traditional fleece keeping you warmer then the traditional fleece it drys faster keeping you well insulated in wind rain over compensates for sweat and odor