Contrary to the name, replica jerseys are genuine and officially licensed by both the club and the manufacturer. Authentic jerseys are what players wear on the pitch. They have a form-fitting cut and are built for physical sports and activities. Replica jerseys are made for everyday wear. The jerseys usually come with a more relaxed fit for optimal comfort. While purchasing a jersey, you would want to pay attention to the details such as the fabric, stitching, crests and miscellaneous embroidery.